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CENTRAL PORT FUEL INJECTORS

THE "SPIDERS"

GM began using  central port injection (CPI) or "central port fuel injection" (CPFI) in the early '90s.  The system uses a series of tubes with poppet valves and central injector to spray fuel at each intake port.  This is as opposed to a central throttle-body system.  From '92 - '95 the CPI or CPFI was used and all cylinders were batch fired.  In '96 GM switched to CSFI, a similar system except that instead of batch firing all ports it fires the ports sequentially.

The most common unit is our part number 833-22101 which fits 1992 - 1995 GM 4.3L engines with a VIN "W" engine.

4.3L GM CPI Injector Unit, The Spider   Part # 833-22101  $ 144.95 plus a $ 50.00 core charge.

    Fits 1992 - 1995 4.3L GM W engines

    email: info@fuelparts.com or call 877-525-5233 to order

When replacing your spider injector unit it is always smart to replace the parts included in the GM CPI Nut Kit.

The plastic fuel lines can become brittle and often crack and begin leaking when the CPI unit is replaced because of the lines being moved during installation.

GM CPI Nut Kit     

 GM CPI Nut Kit Part Number 17112705   $69.95

        email: info@fuelparts.com or call 877-525-5233 to order

        

 

 

96 - 00 GM 5.0 5.7L CPI

Part # 833-22102-8     $ 239.95      Core $85.00

Fits 1996 - 2000 5.0 & 5.7L GM  with 5mm black tubing

 

 

96 - 00 GM 5.0 & 5.7L CPI

 

Part # 833-22105-8    $ 269.95    Core $ 85.00

Fits 1996 - 2000 GM 5.0 & 5.7L with 6.5mm white tubing

 

04 - 07 GMC 4.3L CPI, GM Central Port Injector

 

Part # 833-22105-6    $ 189.95    Core $ 85.00

Fits 2002 - 2007 GMC 4.3L VIN X

 

98 - 03 GM 4.3L CPI Spider, 4.3L GM Central Port Fuel Injector

Part# 833-22102-6  $ 169.95  Core $ 85.00

Fits 1996 - 2003 GM 4.3L W Engines

 

Call us at 877-525-5233 or email us at info@fuelparts.com one of our "Old School" Auto Parts guys will help make sure you get the right parts for your vehicle.  They will also treat you like a real customer not some link or number in a computer.