Which vehicles does the CP Pistons 2-S21-3957-0 fit?

Universal fit: no vehicle restriction.

How much is shipping and when does it ship?

Ships in about 2 weeks. Ground shipping in Canada is free on orders of $100 and up, $9.99 under that.

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Part # 2-S21-3957-0SKU CPP2-S21-3957-0

Universal fit

Specifications
Brand	CP Pistons
Part type	Engine Piston Ring Set

Second Ring.

Genuine CP Pistons product, part number 2-S21-3957-0.

2-N26-3937-OTHG100mm Bore Second Rings	$14.26
2-N26-4000-0THG1.2mm Cast Iron Back Cut 2nd Ring 4.000 bore Taper Hook Groove (Napier)	$14.26
1-N16-4000-01.2mm Nitrided Back Cut Top Ring 4.000 bore	$21.75
2-MS26-3760-THG1.2mm Steel Napier Back Cut Second Piston Ring 3.76in Bore w/ Taper Hook Groove (Single)	$19.97
2-MS21-4095-THG1.5mm Steel Napier Back Cut 2nd Ring 4.095 Bore Taper Hook Groove	$15.69
2-MD29-40752.0mm Diesel Duct 2nd Ring 4.075 Bore R2 .166	$30.67