United Pacific 31787 is a complete 7-inch chrome Guide 682-C crystal H4 headlight for classic commercial-truck applications. It is sold individually, with one assembly in each box.
Product details
Fully assembled with H4 crystal halogen bulb, item #31387. Wiring Color Code: Braided Black Wire = Ground (-), Braided Green Wire = Low Beam (+), Braided Red Wire = High Beam (+) chrome plated housing and bezel with triple chrome plating process. Included housing can be purchased separately, item #32008.
- Finish: Chrome
- Headlight configuration: 7" Housing Style Guide
- Package: 1 Pc / Box
- Manufacturer part number: 31787
United Pacific listed applications
- 1974-1984 Freightliner FLC120 SFA
- 1934-1936 International C Series
- 1937-1939 International D Series
- 1940-1956 Mack L Series
- 1954-1976 Peterbilt 281
- 1941-1949 Peterbilt 345
- 1954-1976 Peterbilt 351
- 1987-2007 Peterbilt 357
- 1967-1987 Peterbilt 359
These are the SKU-specific applications published by United Pacific. Supplier catalogue-category labels are not additional fitment. Compare the existing 7-inch headlight mount, connector, wiring functions and aiming hardware before ordering.
What is included
One fully assembled headlight in the exact finish, housing style and light configuration named above. A second headlight and any separately referenced replacement components are not included unless the source description explicitly says otherwise.
Frequently asked questions
Is the United Pacific 31787 headlight sold as a pair?
No. United Pacific lists one complete headlight assembly per box. Order two only when your installation requires two matching assemblies.
Which trucks are listed for the United Pacific 31787 headlight?
United Pacific lists: 1974-1984 Freightliner FLC120 SFA; 1934-1936 International C Series; 1937-1939 International D Series; 1940-1956 Mack L Series; 1954-1976 Peterbilt 281; 1941-1949 Peterbilt 345; 1954-1976 Peterbilt 351; 1987-2007 Peterbilt 357; 1967-1987 Peterbilt 359. Match the truck, mounting and existing wiring before ordering.
What light and housing are included with United Pacific 31787?
Fully assembled with H4 crystal halogen bulb, item #31387. Wiring Color Code: Braided Black Wire = Ground (-), Braided Green Wire = Low Beam (+), Braided Red Wire = High Beam (+) chrome plated housing and bezel with triple chrome plating process. Included housing can be purchased separately, item #32008.
Is extra wiring required for United Pacific 31787?
Compare the assembly's headlight connection with the truck before ordering. United Pacific does not list an auxiliary LED circuit for this SKU.
