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Description Donor Vehicle VIN: 3GNTKEE71CG215906 Model: AVALNCH15 Year: 2012 Mileage: 132000 (0 = not available or unknown) Stock Number: 91516A Store Number: 1 Part Detail Part Grade: A Part Category: Y Part Placement: Notes: This part will fit these makes and models with these options SIERRA DENALI 09 Assembly (4 wheel ABS); (LH frame below cab)SILVERADO 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 14 Assembly; (LH frame below cab)SUBURBAN 1500 09-14 Assembly; (LH frame below cab)YUKON XL 1500 09-14 Assembly; (LH frame below cab)ESCALADE ESV 09-14 Assembly; (LH frame below cab)SIERRA DENALI 10 Assembly (4 wheel ABS); (LH frame below cab), from 1/12/10YUKON 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)YUKON 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)YUKON 14 Assembly; (LH frame below cab)ESCALADE EXT 09-13 Assembly; (LH frame below cab)SIERRA DENALI 1500 11-13 Assembly (4 wheel ABS)ESCALADE 09-14 Assembly; (LH frame below cab)SIERRA 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesSILVERADO 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SIERRA 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SILVERADO 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesAVALANCHE 1500 09-13 Assembly (4 wheel ABS); (LH frame below cab)SIERRA 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)TAHOE 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)   Arizona Auto & Truck Parts, Inc. 2021 W Buckeye Rd Phoenix, AZ 85009   Arizona Auto Parts Established in 1919, with nearly 100 years in the car parts business, Arizona Auto Parts has expertly and consistently served our customers with only the absolute highest level of customer service and trusted auto parts in the market. Through the years, our name has become synonymous with low prices and and quality used auto parts.Our team of sales representatives is highly trained and very accommodating. We are open 5 days a week for your orders and any questions you may have as well. Just call us toll free or use our Live Help System and well promptly respond to your needs. Our hours are: Monday - Friday 8:00AM - 5:00PM Saturday - Sunday Closed   Core Charge. Core is an acronym for Cash On Return. A core charge is sometimes applied to re-buildable parts such as engines or alternators that can be redeemed for a portion of their original price. If the part you are purchasing has a core charge applied, it will be noted in the description. Parts Grading. A standard code system is used to communicate the condition and quality of a part between automotive recyclers, automotive repair shops, and insurers. Knowing how these codes are used will help you understand whether the part meets your expectations before you buy it and what you can expect from the part when you receive it. A Grade - The highest quality part. It is of low miles and/or exceptional condition for its age. B Grade - The second level quality part. It is of average miles and normal condition for its age. C Grade - The third level quality part. It has high miles and/or light damage. No Grade - A part that has not yet been graded.

Description Donor Vehicle Model: TAHOE Year: 2010 Mileage: 0 (0 = not available or unknown) Stock Number: 90417B Store Number: 1 Part Detail Part Grade: A Part Category: Y Part Placement: Notes: This part will fit these makes and models with these options SIERRA DENALI 09 Assembly (4 wheel ABS); (LH frame below cab)SILVERADO 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 14 Assembly; (LH frame below cab)SUBURBAN 1500 09-14 Assembly; (LH frame below cab)YUKON XL 1500 09-14 Assembly; (LH frame below cab)ESCALADE ESV 09-14 Assembly; (LH frame below cab)SIERRA DENALI 10 Assembly (4 wheel ABS); (LH frame below cab), from 1/12/10YUKON 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)YUKON 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)YUKON 14 Assembly; (LH frame below cab)ESCALADE EXT 09-13 Assembly; (LH frame below cab)SIERRA DENALI 1500 11-13 Assembly (4 wheel ABS)ESCALADE 09-14 Assembly; (LH frame below cab)SIERRA 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesSILVERADO 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SIERRA 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SILVERADO 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesAVALANCHE 1500 09-13 Assembly (4 wheel ABS); (LH frame below cab)SIERRA 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)TAHOE 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)   Arizona Auto & Truck Parts, Inc. 2021 W Buckeye Rd Phoenix, AZ 85009   Arizona Auto Parts Established in 1919, with nearly 100 years in the car parts business, Arizona Auto Parts has expertly and consistently served our customers with only the absolute highest level of customer service and trusted auto parts in the market. Through the years, our name has become synonymous with low prices and and quality used auto parts.Our team of sales representatives is highly trained and very accommodating. We are open 5 days a week for your orders and any questions you may have as well. Just call us toll free or use our Live Help System and well promptly respond to your needs. Our hours are: Monday - Friday 8:00AM - 5:00PM Saturday - Sunday Closed   Core Charge. Core is an acronym for Cash On Return. A core charge is sometimes applied to re-buildable parts such as engines or alternators that can be redeemed for a portion of their original price. If the part you are purchasing has a core charge applied, it will be noted in the description. Parts Grading. A standard code system is used to communicate the condition and quality of a part between automotive recyclers, automotive repair shops, and insurers. Knowing how these codes are used will help you understand whether the part meets your expectations before you buy it and what you can expect from the part when you receive it. A Grade - The highest quality part. It is of low miles and/or exceptional condition for its age. B Grade - The second level quality part. It is of average miles and normal condition for its age. C Grade - The third level quality part. It has high miles and/or light damage. No Grade - A part that has not yet been graded.

Description Donor Vehicle Model: SIERRA150 Year: 2011 Mileage: 76000 (0 = not available or unknown) Stock Number: 90404A Store Number: 1 Part Detail Part Grade: A Part Category: Y Part Placement: Notes: This part will fit these makes and models with these options SIERRA DENALI 09 Assembly (4 wheel ABS); (LH frame below cab)SILVERADO 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 14 Assembly; (LH frame below cab)SUBURBAN 1500 09-14 Assembly; (LH frame below cab)YUKON XL 1500 09-14 Assembly; (LH frame below cab)ESCALADE ESV 09-14 Assembly; (LH frame below cab)SIERRA DENALI 10 Assembly (4 wheel ABS); (LH frame below cab), from 1/12/10YUKON 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)YUKON 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)YUKON 14 Assembly; (LH frame below cab)ESCALADE EXT 09-13 Assembly; (LH frame below cab)SIERRA DENALI 1500 11-13 Assembly (4 wheel ABS)ESCALADE 09-14 Assembly; (LH frame below cab)SIERRA 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesSILVERADO 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SIERRA 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SILVERADO 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesAVALANCHE 1500 09-13 Assembly (4 wheel ABS); (LH frame below cab)SIERRA 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)TAHOE 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)   Arizona Auto & Truck Parts, Inc. 2021 W Buckeye Rd Phoenix, AZ 85009   Arizona Auto Parts Established in 1919, with nearly 100 years in the car parts business, Arizona Auto Parts has expertly and consistently served our customers with only the absolute highest level of customer service and trusted auto parts in the market. Through the years, our name has become synonymous with low prices and and quality used auto parts.Our team of sales representatives is highly trained and very accommodating. We are open 5 days a week for your orders and any questions you may have as well. Just call us toll free or use our Live Help System and well promptly respond to your needs. Our hours are: Monday - Friday 8:00AM - 5:00PM Saturday - Sunday Closed   Core Charge. Core is an acronym for Cash On Return. A core charge is sometimes applied to re-buildable parts such as engines or alternators that can be redeemed for a portion of their original price. If the part you are purchasing has a core charge applied, it will be noted in the description. Parts Grading. A standard code system is used to communicate the condition and quality of a part between automotive recyclers, automotive repair shops, and insurers. Knowing how these codes are used will help you understand whether the part meets your expectations before you buy it and what you can expect from the part when you receive it. A Grade - The highest quality part. It is of low miles and/or exceptional condition for its age. B Grade - The second level quality part. It is of average miles and normal condition for its age. C Grade - The third level quality part. It has high miles and/or light damage. No Grade - A part that has not yet been graded.

Description Donor Vehicle VIN: 1GNUKBE0XAR142652 Model: TAHOE Year: 2010 Mileage: 105000 (0 = not available or unknown) Stock Number: 91669B Store Number: 1 Part Detail Part Grade: A Part Category: Y Part Placement: Notes: This part will fit these makes and models with these options SIERRA DENALI 09 Assembly (4 wheel ABS); (LH frame below cab)SILVERADO 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 14 Assembly; (LH frame below cab)SUBURBAN 1500 09-14 Assembly; (LH frame below cab)YUKON XL 1500 09-14 Assembly; (LH frame below cab)ESCALADE ESV 09-14 Assembly; (LH frame below cab)SIERRA DENALI 10 Assembly (4 wheel ABS); (LH frame below cab), from 1/12/10YUKON 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)YUKON 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)YUKON 14 Assembly; (LH frame below cab)ESCALADE EXT 09-13 Assembly; (LH frame below cab)SIERRA DENALI 1500 11-13 Assembly (4 wheel ABS)ESCALADE 09-14 Assembly; (LH frame below cab)SIERRA 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesSILVERADO 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SIERRA 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SILVERADO 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesAVALANCHE 1500 09-13 Assembly (4 wheel ABS); (LH frame below cab)SIERRA 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)TAHOE 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)   Arizona Auto & Truck Parts, Inc. 2021 W Buckeye Rd Phoenix, AZ 85009   Arizona Auto Parts Established in 1919, with nearly 100 years in the car parts business, Arizona Auto Parts has expertly and consistently served our customers with only the absolute highest level of customer service and trusted auto parts in the market. Through the years, our name has become synonymous with low prices and and quality used auto parts.Our team of sales representatives is highly trained and very accommodating. We are open 5 days a week for your orders and any questions you may have as well. Just call us toll free or use our Live Help System and well promptly respond to your needs. Our hours are: Monday - Friday 8:00AM - 5:00PM Saturday - Sunday Closed   Core Charge. Core is an acronym for Cash On Return. A core charge is sometimes applied to re-buildable parts such as engines or alternators that can be redeemed for a portion of their original price. If the part you are purchasing has a core charge applied, it will be noted in the description. Parts Grading. A standard code system is used to communicate the condition and quality of a part between automotive recyclers, automotive repair shops, and insurers. Knowing how these codes are used will help you understand whether the part meets your expectations before you buy it and what you can expect from the part when you receive it. A Grade - The highest quality part. It is of low miles and/or exceptional condition for its age. B Grade - The second level quality part. It is of average miles and normal condition for its age. C Grade - The third level quality part. It has high miles and/or light damage. No Grade - A part that has not yet been graded.

Description Donor Vehicle Model: TAHOE Year: 2009 Mileage: 139000 (0 = not available or unknown) Stock Number: 72311A Store Number: 1 Part Detail Part Grade: A Part Category: U Part Placement: Notes: This part will fit these makes and models with these options SIERRA DENALI 09 Assembly (4 wheel ABS); (LH frame below cab)SILVERADO 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 14 Assembly; (LH frame below cab)SUBURBAN 1500 09-14 Assembly; (LH frame below cab)YUKON XL 1500 09-14 Assembly; (LH frame below cab)ESCALADE ESV 09-14 Assembly; (LH frame below cab)SIERRA DENALI 10 Assembly (4 wheel ABS); (LH frame below cab), from 1/12/10YUKON 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)YUKON 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)YUKON 14 Assembly; (LH frame below cab)ESCALADE EXT 09-13 Assembly; (LH frame below cab)SIERRA DENALI 1500 11-13 Assembly (4 wheel ABS)ESCALADE 09-14 Assembly; (LH frame below cab)SIERRA 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesSILVERADO 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SIERRA 1500 PICKUP 10 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; from 1/12/10SILVERADO 1500 PICKUP 11-13 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakesAVALANCHE 1500 09-13 Assembly (4 wheel ABS); (LH frame below cab)SIERRA 1500 PICKUP 09 Assembly (4 wheel ABS); (LH frame below cab), w/o active apply brakes; w/active brake control (opt JL4)TAHOE 09-10 Assembly; (LH frame below cab), vacuum brake booster (opt JD9), w/active brake control (opt JL4)TAHOE 11-13 Assembly; (LH frame below cab), vacuum brake booster (opt JD9)   Arizona Auto & Truck Parts, Inc. 2021 W Buckeye Rd Phoenix, AZ 85009   Arizona Auto Parts Established in 1919, with nearly 100 years in the car parts business, Arizona Auto Parts has expertly and consistently served our customers with only the absolute highest level of customer service and trusted auto parts in the market. Through the years, our name has become synonymous with low prices and and quality used auto parts.Our team of sales representatives is highly trained and very accommodating. We are open 5 days a week for your orders and any questions you may have as well. Just call us toll free or use our Live Help System and well promptly respond to your needs. Our hours are: Monday - Friday 8:00AM - 5:00PM Saturday - Sunday Closed   Core Charge. Core is an acronym for Cash On Return. A core charge is sometimes applied to re-buildable parts such as engines or alternators that can be redeemed for a portion of their original price. If the part you are purchasing has a core charge applied, it will be noted in the description. Parts Grading. A standard code system is used to communicate the condition and quality of a part between automotive recyclers, automotive repair shops, and insurers. Knowing how these codes are used will help you understand whether the part meets your expectations before you buy it and what you can expect from the part when you receive it. A Grade - The highest quality part. It is of low miles and/or exceptional condition for its age. B Grade - The second level quality part. It is of average miles and normal condition for its age. C Grade - The third level quality part. It has high miles and/or light damage. No Grade - A part that has not yet been graded.

Description Donor Vehicle Model: SILVRDO15 Year: 2016 Mileage: 0 (0 = not available or unknown) Stock Number: 90415A Store Number: 1 Part Detail Part Grade: A Part Category: Y Part Placement: Notes: This part will fit these makes and models with these options ESCALADE 17 (assembly); (LH frame below cab), ID 84074967ESCALADE 16 Assembly; (LH frame below cab), ID 23223284SILVERADO 1500 PICKUP 16 Assembly (4 wheel ABS); w/o hybridESCALADE ESV 16 Assembly; (LH frame below cab), ID 23223284YUKON XL 1500 17 (assembly); (LH frame below cab), ID 84074967ESCALADE ESV 17 (assembly); (LH frame below cab), ID 84074967YUKON 17 (assembly); (LH frame below cab), ID 84074967SIERRA 1500 PICKUP 16 Assembly (4 wheel ABS); w/o hybridSIERRA DENALI 1500 16 Assembly (4 wheel ABS); w/o hybridTAHOE 16-17 Assembly; (LH frame below cab), w/o Police; brake option JD9SUBURBAN 1500 17 Assembly; (LH frame below cab), brake option JD9TAHOE 16-17 Assembly; (LH frame below cab), w/Police ( opt Z56 )   Arizona Auto & Truck Parts, Inc. 2021 W Buckeye Rd Phoenix, AZ 85009   Arizona Auto Parts Established in 1919, with nearly 100 years in the car parts business, Arizona Auto Parts has expertly and consistently served our customers with only the absolute highest level of customer service and trusted auto parts in the market. Through the years, our name has become synonymous with low prices and and quality used auto parts.Our team of sales representatives is highly trained and very accommodating. We are open 5 days a week for your orders and any questions you may have as well. Just call us toll free or use our Live Help System and well promptly respond to your needs. Our hours are: Monday - Friday 8:00AM - 5:00PM Saturday - Sunday Closed   Core Charge. Core is an acronym for Cash On Return. A core charge is sometimes applied to re-buildable parts such as engines or alternators that can be redeemed for a portion of their original price. If the part you are purchasing has a core charge applied, it will be noted in the description. Parts Grading. A standard code system is used to communicate the condition and quality of a part between automotive recyclers, automotive repair shops, and insurers. Knowing how these codes are used will help you understand whether the part meets your expectations before you buy it and what you can expect from the part when you receive it. A Grade - The highest quality part. It is of low miles and/or exceptional condition for its age. B Grade - The second level quality part. It is of average miles and normal condition for its age. C Grade - The third level quality part. It has high miles and/or light damage. No Grade - A part that has not yet been graded.

Description Donor Vehicle Model: YUKONXL15 Year: 2004 Mileage: 0 (0 = not available or unknown) Stock Number: 149467 Store Number: 1 Part Detail Part Grade: A Part Category: Y Part Placement: Notes: JL4 This part will fit these makes and models with these options ESCALADE 05 Assembly; (LH frame below cab), w/active brake control (opt JL4), 5.3LTAHOE 06 Assembly; (LH frame below cab), 4x4, w/active brake control (opt JL4), w/o 20" tires; AWD (opt NR3)ESCALADE 04 Assembly; (LH frame below cab), w/active brake control (opt JL4)SUBURBAN 1500 06 Assembly; (LH frame below cab), 4x4, w/active brake control (opt JL4), w/o 20" tires; AWD (opt NR3)SUBURBAN 1500 04-05 Assembly; (LH frame below cab), w/active brake control (opt JL4)SILVERADO 1500 PICKUP 04 Assembly (4 wheel ABS); (below cab), Extended Cab, exc. SS; w/brake control (opt JL4)YUKON XL 1500 06 Assembly; (LH frame below cab), 4x4, w/active brake control (opt JL4), w/o 20" tires; AWD (opt NR3)YUKON 05 Assembly; (LH frame below cab), w/active brake control (opt JL4), w/o DenaliYUKON 06 Assembly; (LH frame below cab), 4x4, w/active brake control (opt JL4), w/o 20" tires; AWD (opt NR3)AVALANCHE 1500 04-05 Assembly (4 wheel ABS); (LH frame below cab), w/active brake control (opt JL4)YUKON XL 1500 05 Assembly; (LH frame below cab), w/active brake control (opt JL4), exc. DenaliESCALADE 06 Assembly; (LH frame below cab), 4x4, w/o 20" tiresESCALADE EXT 04 Assembly; (LH frame below cab)ESCALADE ESV 04 Assembly; (LH frame below cab)YUKON 04 Assembly; (LH frame below cab), w/active brake control (opt JL4)YUKON XL 1500 04 Assembly; (LH frame below cab), w/active brake control (opt JL4)ESCALADE ESV 06 Assembly; (LH frame below cab), w/o 20" tiresSIERRA 1500 PICKUP 04 Assembly (4 wheel ABS); (below cab), extended cab, w/active brake control (opt JL4)TAHOE 04-05 Assembly; (LH frame below cab), w/active brake control (opt JL4) WARRANTY / GUARANTEE Most Parts we sell through come with a 30 Day Money Back Guarantee unless otherwise stated. The 30 Day period starts when you take possession of the part. No labor warranty is provided In the event a part sold with a warranty fails to operate within the warranty period we will replace the part(s) with a functionally equivalent part or refund the part purchase price, at our option. No refund on deposits or unwanted special order parts or special "cut" items. Original shipping charges and return shipping charges will not be refunded. I-17 Auto Parts 22242 N 24th Ave Phoenix, AZ 85027   I-17 Auto Parts ships to US addresses within the 48 continental states only. NO Alaska, Hawaii, Puerto Rico, APO, FPO, or PO Boxes please. International Shipping is available at this time on select parts only. Pick up at our facilities is available. If an item arrives damaged, please contact us immediately within at least 24 hours for further instructions.   i-17 Auto Parts Guaranteed Used Auto Parts in Phoenix, AZ If you have a question about a part's vehicle fit, please contact us BEFORE purchasing. Our hours are: Monday - Friday 8:00AM - 5:00PM Saturday 9:00AM - 1:00PM Sunday Closed We try to answer all messages within 24 hours.   Core Charge. Core is an acronym for ‘Cash On Return’. A core charge is sometimes applied to re-buildable parts such as engines or alternators that can be redeemed for a portion of their original price. If the part you are purchasing has a core charge applied, it will be noted in the description. Parts Grading. A standard code system is used to communicate the condition and quality of a part between automotive recyclers, automotive repair shops, and insurers. Knowing how these codes are used will help you understand whether the part meets your expectations before you buy it and what you can expect from the part when you receive it. A Grade - The highest quality part. It is of low miles and/or exceptional condition for its age. B Grade - The second level quality part. It is of average miles and normal condition for its age. C Grade - The third level quality part. It has high miles and/or light damage. No Grade - A part that has not yet been graded.