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25% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ25 in Cart.

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Receive Up To 25% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ25 at checkout to receive 25% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Paint, Splash Guards, Select Ventvisors & Bug Shields, Springs & Spacers, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, CV Axles, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Shocks & Struts, Chassis, Jumpstarts, Air Filters, Oil Filters, Bearings & Seals, Engine Parts, Wash Accessories,. Outdoor Lifestyle, Towing, Mini Air Compressors and Tire Repair Accessories.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 10/29/17.

Receive 25% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER25.

Receive 10% Off Select Champion, MOOG and FelPro branded products with your online purchase. Use promotional codes: CHAMP10, MOOG10 and/or FELPRO10.


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Water Necks

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$11.99
$8.99
With Promotion
  • Part #: 63440|
  • SKU: 9968109

Available today after 2 p.m.


    • Restricting coolant flow leaving the engine lets you control the amount of heat absorbed by the coolant
    • Red, gold and blue anodized aluminum restrictor plates are mounted under the water outlet on the intake manifold
Retail
$11.99
$14.99
  • Part #: 42303|
  • SKU: 9407321

Available today after 2 p.m.


    • Fits Chevrolet years 55 to 65 and Corvette years 56 to 63
    • Lifetime warranty
Retail
$14.99
$14.99
  • Part #: 4232|
  • SKU: 9097236

Available today after 2 p.m.


    • For small block Ford 221, 289, 302, 351 cubic inch engines
    • 22 degree angle
Retail
$14.99
$20.99
$15.74
With Promotion
  • Part #: 4987|
  • SKU: 9971190

Available today after 2 p.m.


    • Chrome Water Neck; Gasket Style
Retail
$20.99
$30.99
$23.24
With Promotion
  • Part #: 2672|
  • SKU: 1211322

Available today after 2 p.m.


    • Made from precision die-cast aluminum with chrome plated finish
    • Available in OE replacement straight and swivel water outlet options
Retail
$30.99
$32.99
$24.74
With Promotion
  • Part #: 6003|
  • SKU: 9971471

Available today after 2 p.m.


    • Polished Aluminum
    • O-Ring Seal And Bolts Included
Retail
$32.99
$39.99
$29.99
With Promotion
  • Part #: 6007|
  • SKU: 9971464

Available today after 2 p.m.


    • Polished Aluminum
    • O-Ring Seal And Bolts Included
Retail
$39.99
$39.99
$29.99
With Promotion
  • Part #: 2670|
  • SKU: 1211315

Available today after 2 p.m.


    • Made from precision die-cast aluminum with chrome plated finish
    • Available in OE replacement straight and swivel water outlet options
Retail
$39.99
$69.99
$52.49
With Promotion
  • Part #: 63420|
  • SKU: 9968147

Available today after 2 p.m.


    • Locates filler neck at highest point on cars with low-mount radiators to bleed off air
    • Unit can be flipped 180° for either right or left outlet location
Retail
$69.99
$26.99
$20.24
With Promotion
  • Part #: 9403|
  • SKU: 9971495

2 days after 6 p.m.


    • Chrome Water Neck; Gasket Style
Retail
$26.99
$14.99
  • Part #: 4739|
  • SKU: 683922

7 days after 6 p.m.


    • Fits 64 and up Chrysler V8
    • Triple chrome plated
Retail
$14.99
$12.99
  • Part #: 66207|
  • SKU: 20058799

Available


    • Easily installed in place of OEM parts.
    • Supplied with bolts, gaskets or O-rings.
Retail
$12.99
$12.99
  • Part #: 66210|
  • SKU: 20058800

Available


    • Easily installed in place of OEM parts.
    • Supplied with bolts, gaskets or O-rings.
Retail
$12.99
$12.99
  • Part #: 66209|
  • SKU: 20058801

Available


    • Easily installed in place of OEM parts.
    • Supplied with bolts, gaskets or O-rings.
Retail
$12.99
$14.99
  • Part #: 66212|
  • SKU: 20058803

Available


    • Easily installed in place of OEM parts.
    • Supplied with bolts, gaskets or O-rings.
Retail
$14.99
$15.66
  • Part #: 4727|
  • SKU: 20056983

Available


    • Fits Chevy V8 engines
    • Vertical water neck for custom cooling systems
Retail
$15.66
$15.83
  • Part #: 4737|
  • SKU: 20056991

Available


    • Fits 1967 - 1978 Pontiac V8 engines
    • Includes sealing O-ring and bolts
Retail
$15.83
$16.75
  • Part #: 42321|
  • SKU: 20056789

Available


    • Triple chrome plated
    • Brings a professional, custom look
Retail
$16.75
$17.00
  • Part #: 42301|
  • SKU: 20056784

Available


    • Triple chrome plated
    • Brings a professional, custom look
Retail
$17.00
$17.00
  • Part #: 42311|
  • SKU: 20056786

Available


    • Triple chrome plated
    • Brings a professional, custom look
Retail
$17.00
$17.01
  • Part #: 4730|
  • SKU: 20056985

Available


    • Fits Chevy engines
    • Includes a 1/2 inch NPT threaded hole for by-pass hose
Retail
$17.01
$19.87
  • Part #: 4733|
  • SKU: 20056986

Available


    • Fits Oldsmobile 330, 350, 425 and 455 engines
    • Chrome plated
Retail
$19.87
$19.99
  • Part #: 66211|
  • SKU: 20058802

Available


    • Easily installed in place of OEM parts.
    • Supplied with bolts, gaskets or O-rings.
Retail
$19.99
$19.99
  • Part #: 141-501|
  • SKU: 20054397

Available


    • Premium Chrome Water Neck.
    • This Chevrolet water neck utilizes neoprene O-ring gaskets instead of regular gaskets eliminating leakage.
Retail
$19.99
$20.70
  • Part #: 4734|
  • SKU: 20056987

Available


    • Fits Ford 429 - 460 engines
    • Has a 3/8 inch NPT threaded hole for temperature sensor
Retail
$20.70
$23.57
  • Part #: 4735|
  • SKU: 20056988

Available


    • Fits Ford 351 Cleveland
    • Includes sealing O-ring and bolts
Retail
$23.57
$24.62
  • Part #: 4930|
  • SKU: 20057087

Available


    • Polished aluminum
    • Brings a professional, custom look
Retail
$24.62
$24.79
  • Part #: 4816|
  • SKU: 20032306

Available


    • O-Ring Design For Improved Seal
    • Polished Chrome Finish
Retail
$24.79
$24.99
  • Part #: 141-500|
  • SKU: 20054392

Available


    • Premium Chrome Water Neck.
    • This Chevrolet water neck utilizes neoprene O-ring gaskets instead of regular gaskets eliminating leakage.
Retail
$24.99
$25.73
  • Part #: 4933|
  • SKU: 20057088

Available


    • Fits Chevy V8 engines
    • 90 degree neck with a 360 degree swivel design
Retail
$25.73
$26.97
  • Part #: 4817|
  • SKU: 20032307

Available


    • O-Ring Design For Improved Seal
    • Polished Chrome Finish
Retail
$26.97
$29.10
  • Part #: 4736|
  • SKU: 20056989

Available


    • Fits Ford 390, 427 and 428 engines
    • Includes bolts and gasket
Retail
$29.10
$32.32
  • Part #: 4818|
  • SKU: 20032308

Available


    • O-Ring Design For Improved Seal
    • Polished Chrome Finish
Retail
$32.32
$122.69
  • Part #: 4987|
  • SKU: 20057105

Available


    • Stock 4 quart capacity
    • Polished die-cast aluminum
Retail
$122.69
$123.18
  • Part #: 4989|
  • SKU: 20057106

Available


    • Stock 4 quart capacity
    • Polished die-cast aluminum
Retail
$123.18
$157.20
  • Part #: 4988|
  • SKU: 20057107

Available


    • Stock 4 quart capacity
    • Polished die-cast aluminum
Retail
$157.20
$228.08
  • Part #: 4986|
  • SKU: 20057104

Available


    • Heavy die-cast aluminum
    • Polished finned finish
Retail
$228.08
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