2021 GMC Sierra 1500 equipped with 6.2L V8 Gas OHV, 5.3L V8 Gas OHV, 5.3L V8 Flex OHV, 4.3L V6 Gas OHV, 3.0L L6 Diesel DOHC Turbo, 2.7L L4 Gas DOHC Turbo
1
High Side
2021 GMC Sierra 1500 equipped with 6.2L V8 Gas OHV, 5.3L V8 Gas OHV, 5.3L V8 Flex OHV, 4.3L V6 Gas OHV, 3.0L L6 Diesel DOHC Turbo, 2.7L L4 Gas DOHC Turbo
High Side
1 Per Vehicle
2021 GMC Sierra 1500 equipped with 2.7L L4 Gas DOHC Turbo
2
High Side
CORE ONLY Eng: L3B 8th VIN Digit: K
2021 GMC Sierra 1500 equipped with 2.7L L4 Gas DOHC Turbo
High Side
CORE ONLY Eng: L3B 8th VIN Digit: K
2 Per Vehicle
2021 GMC Sierra 1500 equipped with 6.2L V8 Gas OHV, 5.3L V8 Gas OHV, 5.3L V8 Flex OHV, 4.3L V6 Gas OHV, 3.0L L6 Diesel DOHC Turbo, 2.7L L4 Gas DOHC Turbo
2
Low Side
CORE ONLY
2021 GMC Sierra 1500 equipped with 6.2L V8 Gas OHV, 5.3L V8 Gas OHV, 5.3L V8 Flex OHV, 4.3L V6 Gas OHV, 3.0L L6 Diesel DOHC Turbo, 2.7L L4 Gas DOHC Turbo
Low Side
CORE ONLY