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Genuine Chevrolet Colorado Rocker Arm
Engine Rocker Arm- Select Vehicle by Model
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7 Rocker Arms found
Chevrolet Colorado Arm Assembly, Exhaust Valve Rocker
Part Number: 12681275$14.09 MSRP: $23.32You Save: $9.23 (40%)Ships in 1-3 Business Days
Chevrolet Colorado Arm,Valve Rocker
Part Number: 24100294$4.97 MSRP: $8.23You Save: $3.26 (40%)Ships in 1-3 Business Days
Chevrolet Colorado Arm Assembly, Valve Rocker Switching
Part Number: 12666601$34.01 MSRP: $58.67You Save: $24.66 (43%)Ships in 1-2 Business Days
Chevrolet Colorado ARM ASM-VLV RKR
Part Number: 12693909$14.92 MSRP: $36.02You Save: $21.10 (59%)Ships in 1-3 Business DaysChevrolet Colorado Arm Assembly, Vlv Rkr
Part Number: 12701225$2.75 MSRP: $4.34You Save: $1.59 (37%)Ships in 1-3 Business DaysChevrolet Colorado Arm Assembly, Valve Rocker
Part Number: 12654646$4.82 MSRP: $7.58You Save: $2.76 (37%)Ships in 1-3 Business Days
Chevrolet Colorado Arm Assembly, Valve Rocker
Part Number: 12625214$36.46 MSRP: $57.37You Save: $20.91 (37%)Ships in 1-3 Business Days
Chevrolet Colorado Rocker Arm
The Rocker Arm is an important part of Chevrolet Colorado vehicles specifically on the satisfactions of the valvetrain mechanism where motion is smoothly transferred from the pushrod to the intake and exhaust valves. In most cases, made out of stamped steel or aluminum, the Rocker Arm transforms the force applied by the pushrod vertically to the appropriate force needed to lift the valves. In increased RPM applications aluminum is used due to its light weighting properties while cast iron or forged carbon steel is used in diesel engines for increased strength. Chevrolet Colorado that is in the market may not have the same type of Rocker Arms as it may be either of the traditional or the roller rocker type. There's nothing like the roller rockers, for instance, those that have the usage of needle bearings when it comes to minimizing the friction, are better both for the overhead valve as well as the overhead camshaft engines. The rocker ratio which is between 1.5:1 and 1.8:1 in modern engine increases the performance of the engine through magnifying the lift from the camshaft. There are also used the upgraded fulcrum bearings for the management of stress in vehicles with high rpm Chevrolet Colorado engines.
Each OEM Chevrolet Colorado Rocker Arm we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.
Chevrolet Colorado Rocker Arm Parts Questions & Experts Answers
- Q: How to remove and inspect Camshaft,Lash Adjuster and Rocker Arm in inline engine on Chevrolet Colorado?A: A special camshaft holding tool (GM# J-44221 or equivalent) is required for this procedure. After removing the cam sprocket, do not rotate the crankshaft to avoid incorrect timing and potential engine damage. Begin by removing the valve cover and the spark plugs to facilitate engine rotation. Rotate the engine until the sprocket alignment marks are aligned with a dark chain link, ensuring the nats at the rear of the camshafts are facing up. Remove the camshaft sprocket bolts and carefully detach the sprockets from the camshafts, taking care not to remove them from the chain and suspending them to prevent the chain from coming off the crankshaft sprocket. Check the camshaft caps for markings and mark them with paint if necessary before removal. Remove the camshaft cap bolts gradually until they can be taken out, then extract the camshafts, keeping them separated to avoid mixing them up. The rocker arms and lash adjusters can be lifted out if needed, and these parts should be laid out in order for reinstallation. After cleaning the camshafts, inspect each for scored journals, heat discoloration, score marks, chipped areas, pitting, uneven wear, damaged locator pin slots, and damaged threads. Measure the bearing journals with a micrometer to check for excessive wear or out-of-round conditions. Compare the camshaft lobe heights by measuring each lobe with a micrometer, recording the measurements for both intake and exhaust lobes separately; if the difference exceeds 0.005 inch, the camshaft should be replaced. If removed, soak the lash adjusters and rocker arms in clean engine oil before reinstalling them in their original locations. Coat the camshaft with clean engine oil and place it in the correct position in the Cylinder Head, then install the camshaft holding tool. Install all camshaft caps in their original locations and hand tighten them, then evenly tighten the caps to the specified torque, working from the center out. Remove the holding fixture, place the sprockets onto the camshafts, and tighten the bolts to the specified torque. Using a large breaker bar and socket on the crankshaft pulley bolt, rotate the crankshaft 720 degrees and re-check the sprocket and chain alignment, ensuring the darkened links align with the sprocket marks; if resistance is felt while turning the crankshaft, stop immediately to diagnose the issue. Finally, install the spark plugs and the valve cover.
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