Harbor Freight Tools


Fuel Pump and Vacuum Tester

Test pump pressure and vacuum quickly with this fuel pump and vacuum tester

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Use this fuel pump and vacuum tester to test the pressure on mechanical and electrical fuel pumps. The vacuum gauge can also diagnose improper valve timing, burned or stuck valves, sticking choke, leaking manifold, improper fuel mixture and more.

  • Easy-to-read 4 in. diameter gauge
  • Tests output pressure to 10 PSI
  • Check mechanical or electric pumps
  • Brass fittings
  • Adapters to work with most vehicles

Important Information

  • This item is subject to a 20% restocking fee

62637, 93547
Tester, hose, brass fittings, adapter, blow mold case
Accessories Included
Brass fittings: 1/4 in.-18 (male) x 1/8 in.- 27 (female), 1/8 in.-27 (male) x 7/32 in. (barbed), 1/8 in.-27 (female) x 3/8 in.- 18 (male), 24 in. L x 1/4 in. diameter vacuum hose
Hose Length
24 in.
Product Weight
2.00 lb.
Shipping Weight
1.99 lb.
Working pressure (psi)
0-10 PSI
CA Residents
Warning - Prop 65 Info
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.