# Attwood Primer Bulb - 5/16" Inner Diameter Hose [93516LP7]

**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)](https://productimageserver.com/literature/quickGuide/98190QG.pdf)

## Details

- **Price:** 24.99 USD
- **Type:** Fuel Hose & Fittings
- **Tags:** 1st Class Eligible, Brand_Attwood Marine, Engine Parts & Service, Engine Parts & Service | Fuel Hose & Fittings

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 24.99 USD | In stock |

## Images

- Attwood Primer Bulb - 5/16" Inner Diameter Hose [93516LP7] Attwood Marine

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> Source: [Besafe1st](https://besafe1st.com/products/attwood-primer-bulb-5-16-inner-diameter-hose-93516lp7)
> Updated: 2026-06-02