Cloyes Engine Timing Crankshaft Sprocket P/N:S977
Cloyes S861 outer timing crankshaft sprocket for the 2011-2013 Ram 1500 V6 3.7L or V8 4.7L and other vehicles turns the engine's timing chain from the crankshaft. It works with the chain, tensioners, guides and other sprockets to keep engine timing precise.
A stretched chain, a worn tensioner or a damaged guide can be behind a rattle from the front of the engine, rough running or a timing-related check engine light, so find the cause before buying a sprocket. If a worn engine timing crankshaft sprocket is the cause, this outer sprocket replaces it.
The 2011-2013 Ram 1500 V6 3.7L or V8 4.7L, the 2011-2013 Ram 2500 V8 4.7L and the 2002-2010 Dodge Ram 1500 V6 3.7L or V8 4.7L all fit this sprocket, one per engine, along with more vehicles. If your truck or SUV isn't named here, enter its year and engine on the Buyer's Guide tab.
Fit and size
Build and materials
Does the Cloyes S861 fit a 2011-2013 Ram 1500 with the V6 3.7L or V8 4.7L?
Yes. Cloyes S861 fits the 2011-2013 Ram 1500 V6 3.7L or V8 4.7L and takes one per engine. For other trucks and SUVs, use the Buyer's Guide tab.
What size is the mounting hole on the Cloyes S861 sprocket?
The Cloyes S861 has a 34.036 mm (1.34 in) mounting hole. Its tooth width is 8.636 mm (0.34 in), and it has one timing mark.
Should the timing chain be replaced along with this outer timing crankshaft sprocket?
The chain, tensioners, guides and sprockets are best replaced together during timing service, so the whole timing system is new at once.
Is the Cloyes S861 sprocket covered by a warranty?
Yes. Cloyes backs the S861 with its Limited Lifetime Warranty.
Does this listing include a timing chain or tensioners?
No. This listing is the S861 sprocket on its own; the chain, tensioners and guides are sold separately.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.