Sierra Water Pump Kit 18-3315-2, Replaces 435929 5001595, for Johnson/Evinrude 90-175 HP & V-6/V-8 Outboards

The Sierra 18-3315-2 is a complete water pump kit with housing, built to restore full cooling-system flow on covered Johnson/Evinrude outboards. It replaces the factory water pump assembly in one purchase rather than requiring the impeller, housing, gaskets, grommets, and hardware to be sourced separately.

The kit includes the water pump housing, impeller with key, cup and plate assembly, impeller housing seal, gaskets, O-rings, grommets, and stainless steel mounting bolts needed to complete a full water pump rebuild in a single job. Stainless steel hardware and a stainless-constructed housing assembly are used for corrosion resistance in a saltwater and freshwater marine environment. Sierra parts are built to meet or exceed the specification of the original equipment part they replace.

This kit fits Johnson/Evinrude outboards: 90/115SL (1995-Up), 120/125ESX (1993-94), and 120/130/140/150/175/V-6/V-8 (1993-Up). Confirm your engine model and horsepower against these ranges before ordering, since water pump kits are model-specific.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3315-2
• Item Type: Water Pump Kit
• Material: Stainless Steel
• Weight: 1.6 pounds
• UPC: 808282203429
• Kit Contents: 18-2557 Impeller Gasket, 18-3405 Water Pump Housing, 18-3059 Impeller with Key, 18-3346 Cup and Plate Assembly, 18-2703 Grommet, 18-2706 Grommet, 18-3135 Stainless Steel Bolt (2), 18-2704 Grommet, 18-2536 Impeller Housing Seal, 18-7158 O-Ring, 18-7143 O-Ring, 18-3369 Stainless Steel Bolts (4), 18-3138 Impeller Key
• OEM Cross-Reference: 435929, 5001595

Fitment

• Johnson/Evinrude 90/115SL (1995-Up)
• Johnson/Evinrude 120/125ESX (1993-94)
• Johnson/Evinrude 120/130/140/150/175/V-6/V-8 (1993-Up)

Replaces (OEM)

• 435929
• 5001595

Frequently Asked Questions

What engines does the Sierra 18-3315-2 water pump kit fit? The 18-3315-2 fits Johnson/Evinrude 90/115SL (1995-Up), 120/125ESX (1993-94), and 120/130/140/150/175/V-6/V-8 (1993-Up) outboards. Verify your engine's horsepower and model year against this range before ordering.

Does this kit include the water pump housing? Yes, the 18-3315-2 kit includes the water pump housing along with the impeller, gaskets, seal, O-rings, grommets, and stainless steel mounting bolts needed to complete the pump rebuild.

What OEM part numbers does the 18-3315-2 replace? This kit replaces OEM numbers 435929 and 5001595, covering the corresponding factory water pump kit on the listed Johnson/Evinrude outboards.

Is the impeller key included in this kit? Yes, an impeller with key (18-3059) and a separate impeller key (18-3138) are both included in the 18-3315-2 kit.

What material is the 18-3315-2 kit made from? The hardware and housing components in this kit use stainless steel construction, which resists corrosion in both saltwater and freshwater marine use.

How much does the Sierra 18-3315-2 water pump kit weigh? The kit weighs 1.6 pounds as packaged.

How many bolts come with this kit? The 18-3315-2 includes 2 stainless steel bolts (18-3135) and 4 additional stainless steel bolts (18-3369) for a total of 6 mounting bolts.

Will this kit work on a 1993 model year Evinrude 120/125ESX? Yes, the 120/125ESX fitment for the 18-3315-2 is specified for 1993-94 model years.

Are gaskets and O-rings included, or do I need to buy them separately? Gaskets, an impeller housing seal, and two O-rings (18-7158 and 18-7143) are all included in the 18-3315-2 kit, so no separate gasket purchase is needed.

Is Sierra 18-3315-2 a genuine aftermarket replacement or OEM part? The 18-3315-2 is a Sierra-manufactured aftermarket kit designed to meet or exceed the specification of the original 435929 and 5001595 OEM water pump kits it replaces.

Does this kit fit V-6 and V-8 Johnson/Evinrude outboards? Yes, the 18-3315-2 covers 120/130/140/150/175/V-6/V-8 Johnson/Evinrude outboards (1993-Up) in addition to the 90/115SL and 120/125ESX ranges.

What grommets are included in the 18-3315-2 kit? Three grommets are included: parts 18-2703, 18-2706, and 18-2704, along with the impeller housing seal 18-2536.