Product Description Secondary tensioner for chain cam drive Meets or exceeds OEM specifications Replaces OEM 39964-99A A Cam Chain Tensioner Tool 910-209 is recommended for installation Mid-USA Secondary Cam Drive Chain Tensioner at RevZilla Browse all RevZilla deals $28.99 In Stock at RevZilla Price checked 4 days ago Buy Now at RevZilla Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Mid-USA Size OS Condition New MPN 66002 Mid-USA