Make sure this part fits

GM 12550913 Valve,Exhaust .0305" Oversize

1994-2001 GM

Customer Questions & Expert Answers (3)
12550913 GM Valve,Exhaust .0305" Oversize Illustration 1 of 1
  • Part Description
    VALVE, Exhaust
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12550913
    Part DescriptionVALVE, Exhaust
    Item Dimensions5.3 x 2.1 x 2.2 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12550913
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    1994-1996 Buick Roadmaster8 Cyl 5.7L4 DOOR, LIMITED, LIMITED SEDAN, STATION WAGON
    1999 Cadillac Escalade8 Cyl 5.7L1 TON CREW CAB, 1/2 TON, 3/4 TON, 4 DOOR 1/2 TON, CREW CAB 1 TON, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, K2500 CREW CAB, K3500 CAB CHASSIS 135.5, K3500 CAB CHASSIS 159.9, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, YUKON/DENALI/ESCALADE
    1994 Cadillac Fleetwood8 Cyl 5.7LBROUGHAM 4 DOOR
    1996-2001 Chevrolet Astro6 Cyl 4.3LVAN ASTRO
    1996-1999 Chevrolet Blazer6 Cyl 4.3L2 DOOR, 4 DOOR
    1996-1999 Chevrolet C15006 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7LC1500 EXTENDED CAB LONG BOX, C1500 EXTENDED CAB STANDARD BOX, C1500 REGULAR CAB LONG BOX, C1500 REGULAR CAB STANDARD BOX
    1997-1999 Chevrolet C25008 Cyl 5.0L, 8 Cyl 5.7LC2500 CREW CAB, C2500 EXTENDED CAB LONG BOX, C2500 EXTENDED CAB STANDARD BOX, C2500 REGULAR CAB
    1997-1999 Chevrolet C35008 Cyl 5.7LC3500 CAB CHASSIS 135.5, C3500 CAB CHASSIS 159.9, C3500 CAB CHASSIS 183.5, C3500 CREW CAB LONG WHEELBASE, C3500 CREW CAB SHORT WHEELBASE, C3500 EXTENDED CAB, C3500 REGULAR CAB
    1994-1996 Chevrolet Camaro8 Cyl 5.7L2 DOOR, CONVERTIBLE
    1994-1996 Chevrolet Caprice8 Cyl 4.3L, 8 Cyl 5.7LCLASSIC 4 DOOR, CLASSIC STATION WAGON, LS 4 DOOR
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  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12550913 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    Why is servicing the Exhaust Valve, valve seats, and valve guides best handled by a professional for the 1997 Chevrolet Astro? Posted by Chevelle R.
    A:
    Servicing valves, valve seats, and valve guides, commonly referred to as a valve job, is best handled by a professional due to the complex nature of the job and the specialized tools and equipment required. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Raul / Feb 22, 2023
    Q:
    What is a "valve job" for the 1999 Chevrolet S10, specifically regarding the Exhaust Valve? Posted by Manon S.
    A:
    A "valve job" refers to the servicing of the valves, valve seats, and valve guides in an engine. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Jul 26, 2025

Genuine GM Part 12550913, the Right Choice

To ensure reliability, purchase GM part # 12550913 Valve,Exhaust .0305" Oversize. It is sometimes referred to as GM Exhaust Valve. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Buick Roadmaster models. It fits Cadillac Escalade, Fleetwood. It also fits Chevrolet Camaro, Silverado, Tahoe. This also fits GMC Sierra, Suburban, Yukon.

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