Free Shipping on Orders Over $50
Attwood Primer Bulb – 5/16″ Inner Diameter Hose [93516LP7]
Original price was: $16.76.$10.26Current price is: $10.26.
91 in stock
Primer Bulb – 5/16″ Inner Diameter Hose
This Atwood Primer Bulb is engineered and constructed to deliver the most reliable priming and long-term leak-free performance. The exclusive three-layer construction prevents collapse under vacuum and prevents ballooning or bursting under pressure. The low-permeation material prevents fuel evaporation, and this bulb delivers 60 percent more output per pump than leading competitors.
Features:
- It is intended for use with a 5/16-inch interior diameter hose
- Exclusive high-efficiency check-valves deliver faster priming and low fuel restriction (less than 1kPa restriction at 50 liters/hour)
- Engineered hose barbs and stainless steel stepless clamps ensure leak-free performance
- This bulb is compatible with Ethanol blended fuels, and it is EPA and CARB certified
Specifications:
- ID Diameter (inches): 5/16″
- Box Dimensions: 5″H x 5″W x 5″L WT: 0.55 lbs
- UPC: 022697935168
Quick Guide (pdf)
![attwood-primer-bulb-5-16-inner-diameter-hose-93516lp7 Attwood Primer Bulb - 5/16" Inner Diameter Hose [93516LP7]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/attwood-primer-bulb-5-16-inner-diameter-hose-93516lp7.webp)
![trident-marine-5-8-x-50-boxed-type-a2-fuelvent-line-hose-black-317-0586 Trident Marine 5/8" x 50 Boxed Type A2 FuelVent Line Hose - Black [317-0586]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/trident-marine-5-8-x-50-boxed-type-a2-fuelvent-line-hose-black-317-0586.webp)
![trident-marine-3-8-barrier-lined-b1-15-epa-compliant-outboard-fuel-line-hose-gra Trident Marine 3/8" Barrier Lined B1-15 EPA Compliant Outboard Fuel Line Hose - Gray - Sold by the Foot [305-0386-FT]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/trident-marine-3-8-barrier-lined-b1-15-epa-compliant-outboard-fuel-line-hose-gra.webp)
![trident-marine-3-8-x-50-boxed-barrier-lined-b1-15-epa-compliant-outboard-fuel-li Trident Marine 3/8" x 50 Boxed Barrier Lined B1-15 EPA Compliant Outboard Fuel Line Hose - Gray [305-0386]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/trident-marine-3-8-x-50-boxed-barrier-lined-b1-15-epa-compliant-outboard-fuel-li.webp)
![trident-marine-1-1-2-x-50-coil-type-a2-fuel-fill-hose-327-1126 Trident Marine 1-1/2" x 50 Coil Type A2 Fuel Fill Hose [327-1126]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/trident-marine-1-1-2-x-50-coil-type-a2-fuel-fill-hose-327-1126.webp)
![trident-marine-5-16-barrier-lined-b1-15-epa-compliant-outboard-fuel-line-hose-gr Trident Marine 5/16" Barrier Lined B1-15 EPA Compliant Outboard Fuel Line Hose - Gray - Sold by the Foot [305-0566-FT]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/trident-marine-5-16-barrier-lined-b1-15-epa-compliant-outboard-fuel-line-hose-gr.webp)
![attwood-mercury-yamaha-female-hose-engine-fitting-3-8-barb-8896lp6 Attwood Mercury/Yamaha Female Hose Engine Fitting - 3/8" Barb [8896LP6]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/attwood-mercury-yamaha-female-hose-engine-fitting-3-8-barb-8896lp6.webp)
![trident-marine-5-8-type-a2-fuelvent-line-hose-black-sold-by-foot-317-0586-ft Trident Marine 5/8" Type A2 FuelVent Line Hose - Black - Sold by the Foot [317-0586-FT]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/trident-marine-5-8-type-a2-fuelvent-line-hose-black-sold-by-foot-317-0586-ft.webp)
![attwood-honda-fuel-line-kit-3-8-diameter-x-6-length-93806hus7 Attwood Honda Fuel Line Kit - 3/8" Diameter x 6 Length [93806HUS7]](https://www.bestoutdoorpreptools.com/wp-content/uploads/2026/09/attwood-honda-fuel-line-kit-3-8-diameter-x-6-length-93806hus7.webp)