Can i use this on a 99 nissan maxima?

For windshield washer - yes. Not for fuel system. Your car is fuel injectected and fuel system is operaiting under much higher pressure then this pump can handle.

Can this be used to start a continuous siphon (assuming gravity is in your favor) or does it require hand pumping the whole time?

I have not used it in such a manner, I would think it would work once the flow is started. The check valve in the unit is supposed to provide a force flow to the unit, then the fuel pump would take over, or gravity flow if that is the manner of fuel flow. Hope this helps.

is the internal valve spring loaded?are you SURE? just bought one that does not work

Yes the valve is internally try to close one side and press the bulb .... vacuum your hand?

8mm 5 16 Black Primer Bulb Rubber Fuel Pump Transfer

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Description

⛽ Pump up your ride’s performance—prime like a pro, wherever the road or waves take you!

RUGGED DURABILITY - Crafted from oil-proof aluminum and rubber for long-lasting, aging-resistant performance.
UNIVERSAL 8 MM FIT - Seamlessly primes carburettors & low-pressure fuel systems across cars, motorcycles, and boats.
COMPACT LIGHTWEIGHT - At just 79g and 6 inches long, it’s the perfect portable tool for on-the-go professionals.
MARINE GRADE RELIABILITY - Trusted accessory for boat owners who demand smooth starts and uninterrupted adventures.
EFFORTLESS ENGINE PRIMING - Handheld manual operation ensures quick fuel introduction post-filter replacement—no hassle, no delay.

This 8mm black primer bulb fuel pump is a universal-fit, handheld manual tool designed to efficiently prime fuel systems in cars, motorcycles, and boats. Made from durable aluminum and rubber, it resists oil and aging, ensuring reliable performance for carburettor and low-pressure fuel systems. Lightweight and compact, it’s an essential accessory for quick engine starts after fuel filter changes.

Specifications

ASIN	B06X3R9YBN
Auto Part Position	Front
Automotive Fit Type	Universal Fit
Best Sellers Rank	#69,763 in Automotive ( See Top 100 in Automotive ) #141 in Hand Fuel Pumps
Body Material	Aluminum
Brand	ePathChina
Brand Name	ePathChina
Compatible with Vehicle Type	Cars,Motorcycles
Connector Type	Barbed Connector
Customer Reviews	4.2 out of 5 stars 1,981 Reviews
Fit Type	Universal Fit
Gas Type	diesel,gasoline
Included Components	1 * Fuel Primer Pump Bulb
Inlet Connection Size	8 Millimeters
Inlet Connection Type	Hose Barb
Item Type Name	Primer Bulb
Item Weight	0.07 Kilograms
Manufacturer	ePathChina
Manufacturer Part Number	AUP_510 FSS_502
Manufacturer Warranty Description	This item can be returned in its original condition or replacement within 30 days of receipt.
Material	Aluminum
Material Type	Aluminum
Model Number	10
Mounting Type	Handheld
Operation Mode	Manual
Outlet Connection Size	8 Millimeters
Outlet Connection Type	Barb
Part Interchange Info	replacement
Product Grade	New
Product Style	Fashion
Style	Fashion
UPC	711301408173 711301408463
Vehicle Service Type	Cars,Motorcycles

Reviews

N**T

8.04.2021

C**K

5.10.2025

K**T

2.03.2024

L**S

16.05.2025

T**I

20.09.2025

L**T

21.07.2024

D**.

5.01.2026

N**N

9.11.2024

C**N

3.12.2022

F**E

7.12.2025

C**N

13.06.2024

T**F

3.08.2025

S**L

27.09.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 17.13

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

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8mm 5/16 Black Primer Bulb Rubber Fuel Pump Transfer Vacuum Fuel Hand Primer Gasoline Petrol Diesel Pump for Marine Boat Accessories

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