Parts Information

The parts required to complete this campaign are to be ordered from WDDGM.

To ensure this part will be obtained as soon as possible, it should be ordered from WDDGM on a C.I.O. order with no special instruction code, but order on an advise code (2).

Parts removed from the involved vehicles are to be retained by the dealer in accordance with the current Service Policies and Procedures Manual.

Number Required
Description P/N Carline Per Vehicle

Converter 25056673 "A", "B", 1
"G"

Converter 25056674 1981 "F" 1
(Non-Z28)

Converter 25056675 1981 "F" 1
(Z28)

Converter 25056676 1982 "F" 1

Converter 25056672 1981 "Y" 1

Upper Bed rebuild kit 25056590 All 1
(contains 300 grams of upper bed catalyst, (2) fill hole plugs P/N 8998202 and instruction sheet)

*Upper Bed Bead Kit 25056680 All As Required.
(contains 700 grams of catalyst beads only)

*Lower Bed Bead Kit 25056682 All As Required.
(contains 1,000 grams of catalyst beads only)

Number Required

Description P/N Carline Per Vehicle

Clamp, Catalytic Converter 22505116 "A", "B" 1
Air Injection Pipe "G"

Bolt (pipe to rear 11502877 "A", "B" 2


converter) "F", "G"


Bolt (hanger to converter) 11504596 1981 "A" 2
"B", 1982 "B", "F", "G"

Bolt (hanger to converter) 9424320 1981 "F" 2

Nut (pipe to converter-"Y") 9414034 1981 "F" 2 "F", 8 "Y"
(hanger to converter-"F") "Y"

Washer (hanger to converter 9439512 1981 "F", 2 "F", 8 "Y"

"F") (pipe to converter "Y") "Y"

Bolt (pipe to converter) 9439636 1981 "Y" 8

Clamp, Exhaust (2 1/4") 1259609 "A", "B" 1
"F", "G"

*Refer to special instructions outlined in the Claim Information section of this bulletin.

Special Tools:

A. Converter Bead Replacement Tool Kit

Each Chevrolet Dealer will be shipped (1) complete catalytic converter bead replacement tool kit (J-34155), no charge.

Each kit consists of:

J-34155-1 Sifting Pan (1)
J-34155-2 Storage Pans (2)
J-34155-3 Funnel (1)

In the event additional kits are required by the dealer they may be purchased from:

Kent-Moore Tool Division
Kent-Moore Corporation
29784 Little Mack
Roseville, MI. 48066

B. Converter Plug Installer

Converter plug installer (J-34118), part of the 1983 essential service tool program, has been forwarded from source to all Chevrolet Dealers.