Search  for anything...

Attwood 93038LP7 High-Output Primer Bulb,

Based on 1,632 reviews
Condition: New
Checking for the best price...
$22.79
Holiday Deal · 40% off was $37.99

Buy Now, Pay Later


As low as $5 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Nov 13
Order within 8 hours and 41 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

At a glance

Condition
New
Size
3/8-in
Model
93038LP7
Dimensions
7 x 1.9 x 1.9 in
Weight
4.48 oz
Color
Black
Light Source Type
Incandescent
In the box
3/8" check valvesPrimer Bulb

Features 4

  • UNCOMPROMISING MARINE SAFETY: Engineered by market leader Attwood to provide the highest levels of reliability and performance for todays boatbuilders, ensuring peace of mind during every voyage
  • EPA & CARB COMPLIANT: Assembled in the USA with low-permeation materials that meet strict EPA and CARB standards; this environmentally conscious design reduces fuel evaporation and odours
  • ETHANOL-RESISTANT DURABILITY: Robust primer bulb materials are specifically designed to resist ethanol; this eliminates the inner-layer delamination often found in lower-quality alternatives
  • EFFORTLESS ENGINE PRIMING: The advanced primer bulb design ensures easy priming and consistent fuel flow in any environment, allowing for quick engine starts even after long periods of storage

Description

The Attwood 93038LP7 Low‑Permeation Primer Bulb is designed to provide dependable, efficient fuel priming for marine engines using 3/8‑inch inner diameter fuel hose. Engineered for modern marine fuel systems, this primer bulb supports reliable fuel delivery and smoother engine starts across a wide range of boating conditions. Featuring exclusive multi‑layer construction, the 93038LP7 primer bulb is built to resist collapse under vacuum and prevent ballooning or bursting under pressure. Its low‑permeation design helps reduce fuel evaporation, while high‑efficiency internal check valves enable faster priming with fewer strokes and maintain consistent, unrestricted fuel flow. The primer bulb is EPA‑compliant and CARB‑certified, making it suitable for use with ethanol‑blended fuels commonly found in today’s marine environments. Designed to remain flexible across a broad temperature range, it helps prevent hardening over time and supports long‑term performance. Ideal for outboard engines and portable fuel systems requiring 3/8‑inch hose connections, the Attwood 93038LP7 delivers reliable priming performance backed by Attwood’s trusted marine engineering.

Specs 27

Brand attwood
Color Black
Specific Uses For Product Interior
Light Source Type Incandescent
Vehicle Service Type Boat
Year 2022
Special Feature Waterproof
Auto Part Position Outside

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Works Great!!
Size: 3/8-inch
Replaced the fuel line and bulb on my $50k boat and added a fuel/water separator because the quality of the line and bulb were crap from the manufacturer. Crazy but that's the way it is. This bulb works great and is a wonderful value for the money. No leaks and easy to install. I see no issues with this and would buy another one if needed or if I get another boat and one is needed. ... show more
Reviewed in the United States on May 18, 2026 by BPalmer

Just what I needed
Size: 3/8-inch
works great on my outboard a Johnson GT150hp, easy to prime and holds it all day
Reviewed in the United States on September 15, 2026 by william haynes

Two bulbs are better than one!
Size: 3/8-inch
Will work great if I ever need it. Bought it for spare.
Reviewed in the United States on September 12, 2026 by Sebastian

Gave Me Quite a Start!
Size: 3/8-inch
When I removed the old bulb from my Big Ol' Johnson, I was shocked at its deteriorated condition compared to the brand-new Atwood bulb. Sun, rain, heating and freezing eat away at exposed rubber like those broads on The View eat away at people the don't like! Don't wait too long to change your boat's primer bulb as I did. Change the primer bulb every few years. And change the exposed fuel line too! ... show more
Reviewed in the United States on August 31, 2023 by Chris Duffy

Durable quality!
Size: 3/8-inch
This was very durable and a great quality. It was a perfect replacement part and the size was the perfect fit.
Reviewed in the United States on August 11, 2026 by TheHonestCritic

High quality and definitely a better value here than anywhere else
Size: 3/8-inch
This is a high quality bulb primer. Don’t bother with the cheap ones on here as they are not made to last and don’t work nearly as well. Walls are too thin and they compress under pressure. I looked around and you would pay close to $50 at O’reilly’s for this brand. I used it for diesel but it’s good for gas as well. ... show more
Reviewed in the United States on January 28, 2026 by Scotty and Rachel

Keepin it
Size: 3/8-inch
Works on my outboard motor. Thick rubber.
Reviewed in the United States on July 27, 2026 by JL

Name brand comfort
Size: 3/8-inch
Good quality. Previous bulb was working, but it was a off brand. I was never comfortable with that. Now I feel better about hitting the lake. Just need to remember to fill the tanks.
Reviewed in the United States on June 17, 2026 by william n.
Checking for best price...