1987 Buick Century Engine Variable Valve Timing (VVT) Oil Control Valve. Corvette. CT4. CT5 - 55512050

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Part Number: 55512050 ; 55486667; 55512044

Bolt. Engine Variable Valve Timing (VVT) Oil Control Valve.
Engine Variable Valve Timing (VVT) Oil Control Valve. Variable Cam Timing.

Engine Variable Valve Timing (VVT) Oil Control Valve

Fits Acadia, Blazer, Corvette, CT4, CT5, CT6, Envision, XT4, XT5, XT6

Corvette. CT4. CT5. Envision. XT4. XT5. XT6.

Diagrams and Kits What This Fits

Assemblies

CAMSHAFT & TIMING. CRANKSHAFT & BEARINGS. CYLINDER HEAD & VALVES. LUBRICATION. MOUNTS. PISTONS. RINGS & BEARINGS.

Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. XT4; AWD; Front. XT4; AWD; Side; Lower. XT4; AWD; Side; Upper. XT4; Driven. XT4; Exhaust. XT4; FWD; Lower. XT4; FWD; Upper. XT4; Inlet. XT4; Intake. XT4; Lower; Journal 1; No Size. XT4; Lower; Journal 1; Size 2. XT4; Lower; Journal 1; Size 3. XT4; Lower; Journal 2-5; Size 1. XT4; Lower; Journal 2-5; Size 2; id 327X. XT4; Lower; Journal 2-5; Size 2; id 327Z. XT4; Outlet. XT4; Slack Side. XT4; Tension Side. XT4; Thrust. XT4; Upper; Size 1; id 311W. XT4; Upper; Size 1; id 312W.

XT4.
CAMSHAFT & TIMING. CRANKSHAFT & BEARINGS. CYLINDER HEAD & VALVES. LUBRICATION. MOUNTS. PISTONS. RINGS & BEARINGS.

#22

Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. XT5; Driven. XT5; Exhaust. XT5; Inlet. XT5; Intake. XT5; Lower; Size 1; id 327 "w". XT5; Lower; Size 1; id 469 "w". XT5; Lower; Size 2; id 327 "x". XT5; Lower; Size 2; id 469 "x". XT5; Lower; Size 3; id 327 "z". XT5; Lower; Size 3; id 469 "z". XT5; Outlet. XT5; Slack Side. XT5; Tension Side. XT5; Thrust. XT5; Upper; Size 1; id 311 "w". XT5; Upper; Size 1; id 312 "w". XT5; Upper; Size 1; id 313 "x". XT5; Upper; Size 2; id 311 "x". XT5; Upper; Size 2; id 312 "x". XT5; Upper; Size 2; id 313 "x". XT5; Upper; Size 2; id 323 "x".

XT5.
Camshaft & timing. Crankshaft & bearings. Cylinder head & valves. Lubrication. Mounts. Pistons. Rings & bearings.

#29

Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. CT4; AWD; Left. CT4; AWD; Right. CT4; Driven Gear. CT4; Exhaust. CT4; Inlet. CT4; Intake. CT4; Lower; awd. CT4; Lower; RTV Liquid Sealer. CT4; Lower; rwd. CT4; Lower; Size 1; id 327. CT4; Lower; Size 1; id 469. CT4; Lower; Size 2; id 327. CT4; Lower; Size 2; id 469. CT4; Lower; Size 3; id 327. CT4; Lower; Size 3; id 469. CT4; Lower; Slack Side. CT4; Lower; Tension Side. CT4; Outlet. CT4; RTV Sealant. CT4; rwd. CT4; Upper; awd.

CT4.
Camshaft & timing. Crankshaft & bearings. Cylinder head & valves. Lubrication. Mounts. Pistons. Rings & bearings.

#43

Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. CT5; AWD; Left. CT5; AWD; Right. CT5; Driven. CT5; Exhaust. CT5; Intake. CT5; Lower; awd. CT5; Lower; Journal 1; Size 1. CT5; Lower; Journal 1; Size 2. CT5; Lower; Journal 1; Size 3. CT5; Lower; Journal 2-5; Size 1. CT5; Lower; Journal 2-5; Size 2. CT5; Lower; Journal 2-5; Size 3. CT5; Lower; rwd. CT5; Lower; Slack Side (fixed). CT5; Lower; Tensioner Side (pivot). CT5; RTV Sealant. CT5; rwd. CT5; Upper; awd. CT5; Upper; rwd. CT5; Upper; Size 1; id 311. CT5; Upper; Size 1; id 312.

CT5.
Camshaft & timing. Crankshaft & bearings. Cylinder head & valves. Lubrication. Mounts. Pistons. Rings & bearings.

#23

Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. XT6; Driven. XT6; Exhaust. XT6; Inlet. XT6; Intake. XT6; Lower; Size 1; id 327 "w". XT6; Lower; Size 1; id 469 "w". XT6; Lower; Size 2; id 327 "x". XT6; Lower; Size 2; id 469 "x". XT6; Lower; Size 3; id 327 "z". XT6; Lower; Size 3; id 469 "z". XT6; Outlet. XT6; Slack Side. XT6; Tension Side. XT6; Upper; Size 1; id 311 "w". XT6; Upper; Size 1; id 312 "w". XT6; Upper; Size 1; id 313 "x". XT6; Upper; Size 2; id 311 "x". XT6; Upper; Size 2; id 312 "x". XT6; Upper; Size 2; id 313 "x". XT6; Upper; Size 2; id 323 "x". XT6; Upper; Size 3; id 311 "z".

XT6.
Camshaft & timing. Crankshaft & bearings. Cylinder head & valves. Lubrication. Mounts. Pistons. Rings & bearings.

#43

Balance shafts. Oil cooler. Oil pan. Oil pump. Variable valve timing. Envision; AWD. Envision; Driven. Envision; Exhaust. Envision; FWD. Envision; Inlet. Envision; Intake. Envision; Lower; Size 1; ID 327W. Envision; Lower; Size 2; ID 327X. Envision; Lower; Size 2; ID 469X. Envision; Lower; Size 3; ID 327Z. Envision; Lower; Size 3; ID 469Z. Envision; Outlet. Envision; RTV Sealant. Envision; Slack Side. Envision; Tension Side. Envision; Upper; Size 1; ID 311W. Envision; Upper; Size 1; ID 312W. Envision; Upper; Size 1; ID 313W. Envision; Upper; Size 2; ID 311X. Envision; Upper; Size 2; ID 312X. Envision; Upper; Size 2; ID 313X.

Envision.
Camshaft & timing. Crankshaft & bearings. Cylinder head & valves. Lubrication. Mounts. Pistons. Rings & bearings.

#21

Oil cooler. Oil pan. Oil pump. Variable valve timing. Corvette; Center. Corvette; Exhaust Cam. Corvette; Exhaust; Left. Corvette; Exhaust; Right. Corvette; Feed. Corvette; Intake Cam. Corvette; Intake; Left. Corvette; Intake; Right. Corvette; Left. Corvette; Lower. Corvette; Marked N. Corvette; Marked T. Corvette; Marked W. Corvette; Marked X. Corvette; Marked Z. Corvette; Primary Chain. Corvette; Return. Corvette; Right. Corvette; Secondary Chain; Left Side. Corvette; Secondary Chain; Left; Slack Side. Corvette; Secondary Chain; Left; Tensioner Side. Corvette; Secondary Chain; Right Side.

Corvette.

Fitment/Applications

This product fits 208 vehicle variants.
Buick: 1 models, 18 variants between 2021 and 2023.
Cadillac: 6 models, 150 variants between 2019 and 2024.
Chevrolet: 2 models, 24 variants between 2020 and 2024.
GMC: 1 models, 16 variants between 2020 and 2022.