My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Sierra 18-70934 Molded Circulating Pump Hose for MerCruiser V-8

Manufacturer

Picture for manufacturer Sierra

Part Number

118-70934
8 reviews
Sale Price

$40.62

2 left at this price

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-70934 is a premium molded circulating pump hose designed specifically for MerCruiser stern drive applications. This OEM-quality replacement hose connects the circulating pump to the thermostat housing on big block GM V-8 engines, ensuring reliable coolant flow for optimal engine temperature management.

Key Features:

  • Precision-molded white rubber construction for exact OEM fit
  • 14 inches overall length with 1.75-inch inside diameter
  • Designed for MerCruiser MCM/MIE GM V-8 engines (427, 454, and 502 cubic inch)
  • Replaces Mercury part numbers 32-897181, 32-89718, 32-46828, and 32-16010
  • Cross-references with Mallory 9-44051
  • Manufactured to meet or exceed OEM specifications

Sierra Marine parts are engineered from quality materials and built to factory specifications, providing dependable performance for your marine engine cooling system. This molded hose eliminates the guesswork of universal hose routing with its pre-formed design for quick, accurate installation.

So far - So good. Waiting fot delivery

Excellent service! Fast shipping and a great price. I couldn't be happier!

Very smooth transaction, good email communication, order arrived as expected

You had the item I needed and at a very favorable price compared to other marine retailers I had used in the past. Finally shipping was excellent !! Thank you!

Quality parts at a reasonable price Bang !

Items arrived as requested. No issues.

I placed the order online with no problem, and I received my order a couple of days later. Item was as described and the price was competitive with other vendors.

Easy

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy