12556121, Engine Manufacturer: GM OEM part number: 12556121 MSRP: $1724.26 Price: $1.49 Availability: Available in 1 shop. See more part details Add to cart	Please help our community — upload your photos of 12556121.

About this 12556121 Engine

This part is an engine, (service partial) (does not include camshaft), for Chevrolet Trucks, Cadillac Trucks, and GMC Trucks cars. It fits for 202 General Motors vehicles which were sold in the U.S.. It's a genuine General Motors part with an OEM part number 12556121. Please keep in mind that this engine is discontinued for the U.S. market since August 1, 2011, and is discontinued for Canada market since February 28, 2009.

This engine has dimensions 16.90 in × 28.30 in × 19.00 in, usually, it comes in a set of 1 item in retail packaging.

This engine 100% fits for General Motors cars. It's made of top quality materials, it has passed not only all manufacturer's tests but also General Motors quality control and has to endure rough road conditions over a long time.

Spare Part Information

Spare part packaging options

Shops Where You Can Buy This GM 12556121 Engine

$1.49 Buy

GM Parts Giant

Northridge, CA

Last update: Apr 18, 2024.

Part 12556121 Has Been Superseded

• 12556121 is discontinued since August 1, 2011 for the U.S. market;
• 12568757 is interchangeable with 12556121 since July 1, 2009 for the U.S. market;
• 12556121 is discontinued since February 28, 2009 for Canada market;
• 12568757 was replaced with 12556121 on February 27, 2009 for Canada market;
• 14101311 is interchangeable with 12568757 since February 1, 2002 for the U.S. market;
• 10104466 was replaced with 14101311 on February 1, 1989 for the U.S. market;
• 10049054 was replaced with 10104466 on August 1, 1988 for the U.S. market.

Related Parts

• Key 00106751
• Pinion 00274584
• Bolt 00461372
• Pinion 00585927
• Pinion 01453658
• Plug 03701638
• Nut 03866766
• Bolt 03877669

This 12556121 engine fits

Chevrolet Trucks Cadillac Trucks GMC Trucks

G10 Van 1985...1991, 1992...1995, 1996...1997 G10 Van Sportvan 1985...1991, 1992...1993 G20 Van 1985...1991, 1992...1995, 1996...1997 G20 Van Sportvan 1985...1991, 1992...1995 G30 Van 1985...1991, 1992...1996, 1997 G30 Van Sportvan 1985...1991, 1992...1996 R1500 Suburban 1989...1991 R2500 Suburban 1989...1991 R3500 Pickup 1989...1991 Blazer 1987...1991 V1500 Suburban 1989...1991 V2500 Suburban 1989...1991 V3500 Pickup 1989...1991 R2500 Pickup 1989 R10 Suburban 1987...1988 R20 Pickup 1987...1988 R20 Suburban 1987...1988 R30 Pickup 1987...1988 V10 Suburban 1987...1988 V20 Suburban 1987...1988 V30 Pickup 1987...1988 R10 Pickup 1987 V10 Pickup 1987 V20 Pickup 1987 C10 Pickup 2WD 1985...1986 C10 Suburban 2WD 1985...1986 C20 Pickup 2WD 1985...1986 C20 Suburban 2WD 1985...1986 C30 Pickup 2WD 1985...1986 Blazer 4WD 1985...1986, 1992...1994 K10 Pickup 4WD 1985...1986 K10 Suburban 4WD 1985...1986 K20 Pickup 4WD 1985...1986 K20 Suburban 4WD 1985...1986 K30 Pickup 4WD 1985...1986 C1500 Pickup 2WD 1988...1991, 1992...1996 C2500 Pickup 2WD 1988...1991, 1992...1996 C3500 Pickup 2WD 1988...1991, 1992...1996 K1500 Pickup 4WD 1988...1991, 1992...1996 K2500 Pickup 4WD 1988...1991, 1992...1996 K3500 Pickup 4WD 1988...1991, 1992...1996 C1500 Suburban 2WD 1992...1996, 1997...1999 C2500 Suburban 2WD 1992...1996, 1997...1999 Tahoe 2WD 1995...1996, 1997...1999 G35 / G3500 Van 1996 K1500 Suburban 4WD 1992...1996, 1997...1999 K2500 Suburban 4WD 1992...1996, 1997...1999 Tahoe 4WD 1995...1996, 1997...1999 K1500 Pickup Sierra 4WD 1995 K1500 Pickup Sierra XC 4WD 1995 Express 1500 1999...2002 Express 2500 1999...2002 Express 3500 1999...2002 P30 Van 1991...1999 G1500 Van 1998 G2500 Van 1998 G3500 Van 1998 G10 Van Express 1996...1997 G20 Van Express 1996...1997 G30 Van Express 1996...1997 C3500 Pickup HD Chassis Cab 2WD (Carryover Model) 2001...2002 C2500 Pickup 2WD (Carryover Model) 1997...2000 C3500 Pickup 2WD (Carryover Model) 1997...2000 Tahoe 2WD (Carryover Model) 2000 K2500 Pickup 4WD (Carryover Model) 1997...2000 K3500 Pickup 4WD (Carryover Model) 1997...2000 Tahoe 4WD (Carryover Model) 2000 C1500 Pickup 2WD (Carryover Model) 1997...1999 K1500 Pickup 4WD (Carryover Model) 1997...1999

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