A fuel pump relay kit purchase line may name a full relay kit carton (relay + socket/harness + fuse/breaker as printed), a bare OEM-style fuel-pump relay, a hotwire / add-on harness kit, or an FPCM/FPDM/driver-module path — and this catalog does not print a relay-kit SKU. The same ticket words can still point at different electrical cartons or a blank relay slot, so the first job is to name the object before anyone quotes a pump box. Coil sizing, electric-relay circuits, wiring, and control-module depth stay on their sister pages below; open KS-360501 only after a pump-side 1987-1995 C/K match, never as a relay kit.
Match the purchase line to the relay-kit object
The line may name a full relay kit carton, a bare fuel pump relay, a hotwire / add-on harness kit, or a fuel pump control / driver module path — not one universal Kangsong kit SKU. A counter who hears “relay kit” and ships the nearest pump motor has skipped that fork.
Shopping carts already sell complete kits that print the relay with a socket or harness and a fuse or circuit breaker. Separate cubes still show up as OEM-style fuel-pump relays that only switch battery current to the pump.
Performance and DIY rows rewrite the high-current feed while still using a chassis signal as the trigger. On later returnless platforms, an FPCM or FPDM path may replace the relay location entirely.
| Ticket reading | What the words may name | What the counter must match | What not to invent |
|---|---|---|---|
| Full relay kit carton | Relay + socket/harness + fuse/breaker + hardware as printed | Sheet already prints kit contents as that carton | A Kangsong relay-kit SKU |
| Bare fuel pump relay | OEM-style four-pin normally-open cube only | Sheet already prints a bare relay / fuel pump switch cube | Shipping a full harness kit when only the cube failed |
| Hotwire / add-on harness kit | Dedicated battery feed kit sold under the same noun | Sheet already prints hotwire, DIY wiring kit, or add-on feed | Treating that kit as the pump motor carton |
| FPCM / FPDM / driver path | Duty-cycle control module; relay slot may be blank | Bay already shows control-module architecture | Ordering a consumer “kit” carton for a blank relay cavity |
Write the object in the same ink as the year and the platform before any carton moves. Shopping rows mix these cartons under one search label; the counter still has to name which one the bay needs.
When the carton is a full relay kit with harness and protection
On open shopping results, “fuel pump relay kit” usually prints relay plus socket or harness plus fuse or breaker plus hardware; amp, gauge, and price bands on those cartons belong to those SKUs only. A full kit is sold to keep voltage drop down on long runs and to keep high pump current off thin stock leads.
Painless Performance kit 50102 prints a 30 A relay with a relay base and harness plus a 30 A circuit breaker on that carton only. Other maker kits change amp and wire labels with their own part numbers, so those figures stay on those cartons.
The circuit breaker / fuse on a full kit protects the high-current feed printed with that kit. AA1Car’s fuse rule still applies when a fuse is the protector: replace a blown fuse with the same amp rating, never a higher one.
Kit shopping often collides with the harness noun. If the bay already shows a harness-named carton, use fuel pump wiring harness; stay here for the relay-kit object fork.
Bare fuel-pump relay as a sister object
A bare OEM-style four-pin normally-open relay is a sister object to a full kit carton — not the same purchase line. Snap-on describes a typical OEM fuel-pump relay as a four-pin normally-open switch with DIN roles 30, 87, 86, and 85.
On that Snap-on page, the ECM grounds the coil when conditions are correct, and the contacts then feed the pump. The same note says the ECM may prime the pump for 3 to 5 seconds when ignition or the door unlocks.
Look-alike cubes can still differ inside. AA1Car lists the fuel pump among high-current loads and warns that identical-looking relays can be wired or rated differently.
Coil-voltage sizing already lives on the twelve-volt sister page for a 12v fuel pump relay. Open that twelve-volt coil-sizing sister if the cube voltage job is already named.
Circuit selection under the electric-relay label lives on electric fuel pump relay. The job here is the kit-versus-cube naming fork.
Hotwire and add-on harness kits under the same noun
DIY wiring kits and performance add-on feeds share the ticket noun; that path is not a bare relay and not this catalog’s pump carton. Radium’s DIY wiring kit prints a 40 A weatherproof relay with a 25 A fuse and 10 AWG leads on that kit only.
Performance pages under the same “relay kit” label describe an independent battery feed that pulls pump current off the OEM main relay. Buyers already ask whether a hotwire kit or a fuel pump relay kit is the right carton for one upgrade.
Shared search words create that trap. Sheet-match jobs that only need the vehicle plug belong on aftermarket fuel pump wiring. Oil-pressure or inertia safety paths belong on fuel pump safety switch wiring.
Name the add-on carton when that is the printed object. Jumper, bypass, and wire-by-wire install steps stay off this page.
When the bay needs an FPCM, FPDM, or driver-module path
Duty-cycle driver and control modules are not consumer “relay kit” cartons; some FPCM bays leave the fuel-pump relay location blank. Ford’s PCED description for the fuel pump driver module (FPDM) shows the module receiving a PCM duty-cycle signal and controlling pump speed from that duty cycle.
CarParts’ P069E explainer draws the same fork in plain language: older systems simply use a relay, while an FPCM supplies and regulates pump voltage and carries different failure codes. A fuel pump control / driver module is therefore a purchase and diagnosis object of its own.
From the field: On Chevrolet Forum, a tech note says systems with an FPCM leave the underhood fuel-pump relay location blank, and the in-tank pump module is not the fuel-pump CONTROL module. — Chevrolet Forum FPCM thread
Read that as a buying stop when someone wants a kit carton for a blank relay cavity. For module depth, use fuel pump power control module; keep the wrong-object fence here.
What this catalog prints for relay-kit tickets
WooCommerce search for relay returns empty; KS-360501 prints an electric fuel pump assembly window — never a relay kit, OE relay number, or invented amps. Store search for “relay” and for “fuel pump relay” both returned empty product lists.
KS-360501 prints a complete 1987-1995 C/K assembly with an OE-comparable harness and no pigtail connector — not a relay-kit BOM. The Part line reads Electric Fuel Pump, and Accessories Included means the pump installation kit on that carton, not a fuel pump relay kit.
The worked listing prints a DC 12 V supply as its working voltage. On that same assembly sheet the main connector field still shows 2Pins, and the printed flow window stays 43.3-49.5 Gph.
OE examples on that sheet include 25168719 and E3902 for the printed C/K window. Relay amps, AWG, OE relay numbers, fuel PSI, LPH, bar, and USD are not printed on that sheet, so none of those lines are invented here.
Maximum Air Pressure 12-26 is an air label on that assembly only. It is not a relay amp rating and not fuel pressure.
If a relay-kit object is missing from this sheet, stay on products-root without inventing a part number.
Select KS-360501 only for the C/K pump window; browse products-root for unprinted relay jobs
Unprinted relay-kit jobs stay on category browse; open KS-360501 only for a pump-side match plus the printed 1987-1995 C/K window — never as a relay kit. That printed window is the 1987-1995 C/K electric gasoline fuel pump with installation kit.
| Printed label | What KS-360501 prints | Relay-kit misread to refuse |
|---|---|---|
| Vehicle window | 1987-1995 C/K 1500 / 2500 / 3500 | Any relay-kit line outside that truck window |
| OE crosses | 25168719 / E3902 and listed crosses | Using those crosses as a universal relay key |
| Electrical | DC 12V, 2Pins | Treating pins as a relay-kit SKU |
| Flow label | 43.3-49.5 Gph | Treating flow as relay amp capacity |
| Air label | Maximum Air Pressure 12-26 | Reading 12-26 as relay amps or fuel PSI |
| Overview | Fuel pump + sending unit + housing; Accessories Included Yes as pump installation kit | Ordering it as a fuel pump relay kit |
If the bay already shows that C/K pump-side assembly, open the product above. If a relay-kit object is still missing from this catalog, stay on products-root.
Sizing depth stays on what size relay for fuel pump. Fuse amp language stays on fuel pump fuses. Hot Rod’s electric-pump wiring note treats the relay as a remote high-current switch and points at an oil-pressure safety path — keep that path on fuel pump safety switch wiring rather than copying wire maps here.
FAQ
Do I need a relay for a fuel pump?
Stock OEM relay circuits already switch pump current on many vehicles. Aftermarket high-draw or long-run jobs often move to a full relay kit carton or a hotwire / add-on harness kit instead — name that object first, then use electric fuel pump relay for circuit depth.
How much is a fuel pump relay?
Shopping panels float USD bands that change by object type and SKU. Invented prices stay out; name whether the line is a full kit, a bare cube, a hotwire kit, or an FPCM path, then price the named object from a live quote.
How do I wire a fuel pump relay?
This article names the purchase object; it does not walk wire-by-wire install. Hardwire or relay-path jobs belong on aftermarket fuel pump wiring, fuel pump wiring harness, and electric fuel pump relay.
How does a fuel pump relay work?
A bare fuel-pump relay is an ECM-controlled normally-open switch: a low-current coil closes higher-current contacts that feed the pump. Snap-on’s DIN pin roles describe that OEM-style cube; a full kit carton adds harness and protection around the same switching idea.
Is it okay to bypass a fuel pump relay?
No. A bypass or jumper how-to is not a purchase-line object here. Keep safety and wiring depth on fuel pump safety switch wiring and aftermarket fuel pump wiring.
Can I wire my fuel pump straight to the battery?
A continuous battery feed without the printed control and protection path is not a fuel pump relay kit carton. If the line means a hotwire / add-on harness kit, name that carton; do not invent a straight-to-battery recipe here.
Is a fuel pump relay kit the same as a bare relay?
No. A full relay kit carton prints relay plus harness and protection; a bare fuel pump relay is only the cube. Hotwire kits and FPCM paths share the search noun and still move as different objects.
Does Kangsong sell a fuel pump relay kit?
No. Relay search on this catalog returns empty.
Is KS-360501 sold as a relay kit?
No. KS-360501 is the printed 1987-1995 C/K electric pump assembly after a pump-side match — never a relay kit.
Is the Maximum Air Pressure 12-26 label a relay amp rating?
No. Maximum Air Pressure 12-26 is an air label on that assembly only. It is not relay amps, AWG, or fuel PSI.
