Sierra 18-4088 Piston Ring Set, Replaces 436353, OMC V-4/V-6 60-Degree Eagle Series 90-175 HP
Sierra 18-4088 Piston Ring Set, Replaces 436353, OMC V-4/V-6 60-Degree Eagle Series 90-175 HP
The Sierra 18-4088 Piston Ring Set is a standard-size replacement ring set for OMC V-4/V-6 60-Degree Eagle Series Sea Drive engines, covering the 90-175 HP range built between 1991 and 2000. It is designed for 4 and 6 cylinder blocks with a 3.600 inch standard bore, and the same ring set applies to both port and starboard pistons at this bore size, so one part number covers the full rebuild whether you are working on the port or starboard side of the powerhead.
Each ring is manufactured from alloy steel and cast iron for wear resistance and a reliable seal against the cylinder wall, helping restore compression and reduce oil blow-by during a top-end rebuild. The set is built to meet or exceed the specification of the original equipment ring it replaces, making it a straightforward drop-in choice when rebuilding OMC 60-Degree Eagle Series powerheads at standard bore.
Specifications
- Brand: Sierra
- Manufacturer Part Number: 18-4088
- Product Type: Piston Ring Set
- Bore Size: 3.600 inches
- Piston Size: Standard
- Cylinder Configuration: 4 and 6 cylinder
- Compatible Horsepower Range: 90-175 HP
- Compatible Model Years: 1991-2000
- Engine Series: OMC V-4/V-6 60-Degree Eagle Series (Sea Drive)
- Material: Alloy Steel, Cast Iron
- Weight: 0.07 pounds
- OEM Cross Reference: 436353
- UPC: 808282125110
Fitment
- OMC V-4/V-6 60-Degree Eagle Series (Sea Drive), 4 and 6 cylinder, 90-175 HP, 1991-2000, 3.600 inch standard bore, port and starboard
Replaces (OEM)
- 436353
Frequently Asked Questions
What engines does the Sierra 18-4088 piston ring set fit? It fits OMC V-4/V-6 60-Degree Eagle Series Sea Drive engines in the 90-175 HP range, 4 and 6 cylinder, built between 1991 and 2000, with a 3.600 inch standard bore.
Is the 18-4088 ring set for the port or starboard side? The same Sierra 18-4088 ring set is used on both the port and starboard pistons at the 3.600 inch bore size, so one part number covers either side of the engine.
What bore size is this ring set made for? 18-4088 is sized for a 3.600 inch standard bore, not an oversize bore.
What OEM number does the Sierra 18-4088 replace? It replaces OEM number 436353 on OMC 60-Degree Eagle Series 3.600 inch bore engines.
Is this a standard size or oversize ring set? The 18-4088 set is the standard size ring for the 3.600 inch bore; oversize bores use different Sierra part numbers.
How many cylinders does this ring set cover per engine? It is used on 4 and 6 cylinder OMC V-4/V-6 60-Degree Eagle Series Sea Drive engines.
What model years does the 18-4088 cover? It covers the 1991-2000 model years on OMC 60-Degree Eagle Series 90-175 HP engines.
What are the piston rings made of? The Sierra 18-4088 rings are made of alloy steel and cast iron for wear resistance in the cylinder bore.
What is included with the Sierra 18-4088? The listing is for one piston ring set, part number 18-4088, sized for a single 3.600 inch bore cylinder.
How much does the 18-4088 ring set weigh? It weighs 0.07 pounds.
How is 18-4088 different from 18-4089 or 18-4090? 18-4088 is sized for a 3.600 inch bore, 18-4089 is sized for a 3.620 inch bore, and 18-4090 is sized for a 3.630 inch bore and replaces a different OEM ring number, 436354.
Does the Sierra 18-4088 meet OEM specification? Yes, the 18-4088 ring set is built to meet or exceed the specification of the 436353 OEM ring it replaces.