Pay in installments of $15.92 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Sierra 18-4531 Water Pump Repair Kit Without HousingSierra's 18 4531 Water Pump Repair Kit without Housing is designed for use in the following Mercury outboard engines: 25 HP (4 Stroke), 30 HP (2 Cylinder), 30 HP (4 Stroke), 40 HP (2 Cylinder), 40 HP (3 Cylinder), 40 HP (4 Stroke), 50 HP (3 Cylinder), 50 HP (4 Stroke), and 50 HP Bigfoot (4 Stroke). The kit contains: (1) Sierra 18 1838 Short Seal (1 3 4"), (1) Sierra 18 1839 Long Seal (2 1 4"), (2) Sierra 18 2560 Impeller Washer Gaskets, (1) Sierra 18
Sierra's 18-4531 Water Pump Repair Kit without Housing is designed for use in the following Mercury outboard engines: 25 HP (4-Stroke), 30 HP (2 Cylinder), 30 HP (4-Stroke), 40 HP (2 Cylinder), 40 HP (3 Cylinder), 40 HP (4-Stroke), 50 HP (3 Cylinder), 50 HP (4-Stroke), and 50 HP Bigfoot (4-Stroke). The kit contains: (1) Sierra 18-1838 Short Seal (1-3/4"), (1) Sierra 18-1839 Long Seal (2-1/4"), (2) Sierra 18-2560 Impeller Washer Gaskets, (1) Sierra 18-0345 Water Pump Gasket, (1) Sierra 18-99155 Water Pump Gasket, (1) Sierra 18-4577 Outer Wear Plate, and (1) Sierra 18-3057 Impeller. It is interchangeable with Mercury Marine 821354A1 and 821354A2. Each Sierra product meets or exceeds the original equipment part it replaces.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 7 reviews
Sort
Product Reviews
★★★★★ 5
Easy to manage
Color: Black, Size: 88"- 4 Panel
Sturdy, easy to manage and roll around. The material for the walls is of a decent ply as well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 4
Great product!
Color: Beige, Size: 88"- 4 Panel
Worked well and it was easy to roll around and fold. The size is great and has a good weight to it. Very sturdy, I plan to buy more
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
★★★★★ 5
Wonderful Room Partition !
Color: Black, Size: 88"- 4 Panel
This product is made very well, packaged, and assembled with no problems. All parts and tools are included (except a Phillips screwdriver.) I put this item all together by myself on a bed to make it easy and simple. I made sure that every screw head was attached where the recessed dimples are located on the vertical poles, just don't overtighten anything. Everything fits like a charm, good quality, looks great, perfect height, rolls with ease, proper privacy, really impressive ! I got the 4-panel in black color. I would certainly buy this item again ! Thank you !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 26, 2025
★★★★★ 1
Not impressed
Color: Beige, Size: 21.5"- 1 Panel
Very flimsy but does the job intended
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
★★★★★ 3
Fair
Color: Black, Size: 88"- 4 Panel
Fair product. Very cheap quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 10, 2025