444822
O ring for Rear heater tube to cylinder head (qty 1)
$8.99 Buy Now
444821
Coolant crossover O ring kit for all 1993-2004 DOHC Models Includes QTY 3 O rings for all factory crossover (the 3rd o-ring seals the two sections in...
$19.99 Buy Now
444901
Water Pump heater core nipple with O rings. Have coolant in the valley, this simple little part is usually the cause, includes new o rings, simply...
$24.99 Buy Now
438888
Crossover Tube Bleeder/Fill plug for 1996-2004 Mustang Cobra/Mach One and 2003-2004 Cobra Replace that stripped or leaking burp plug on the coolant...
$39.99 Buy Now
444903
This great product from MMR allows you to replace that pesky metal heater tube and water pump nipple with AN lines and fittings. The MMR part...
$49.99 Buy Now
966542
MMR Inline Thermostat Housing/Bypass Line delete with 1/2 NPT Port Can be placed in upper or lower radiator hose, great for removing complicated and...
$69.99... more info
950543
This MMR Exclusive item allows you to go from a -16 AN fitting to two -12 AN fittings, fittings are all male and are compatible with all brands of...
$99.99... more info
444991
These Fittings are perfect for making a crossover delete, a rear crossover or for plumbing water to your engine or cylinder heads on filled / solid...
$109.99 Buy Now
950541
MMR Dual AN -12 to Radiator Barb y block Fitting Converts Dual -12 AN fittings to a 1.5" radiator Hose barb which fits all Mustang Models, great for...
$129.99... more info
437192
MMR's cooling head mod ( HCM ) for for 96-04 DOHC 4.6/5.4 (ALL Heads) - (rear of heads) is designed to help eliminate hotspots in the #8 cylinder...
$199.99... more info
444891A
MMR Coolant Cross Over Delete 4V (Without filler) These Fittings allow you to remove the Coolant crossover metal pipe on ALL 4V applications....
$209.99... more info
444891B
MMR Coolant Cross Over Delete 4V (With filler) These Fittings allow you to remove the Coolant crossover metal pipe on ALL 4V applications. Radiator...
$279.99... more info
444891C
MMR Coolant Cross Over Delete 4V (Kit with lines Without filler) These Fittings allow you to remove the Coolant crossover metal pipe on ALL 4V...
$339.99... more info
444891D
MMR Coolant Cross Over Delete 4V (Kit with lines With filler) These Fittings allow you to remove the Coolant crossover metal pipe on ALL 4V...
$399.99... more info
