Caterpillar Anode and Plug Part Number Guide
This is a list of the most common Caterpillar original part numbers in ascending order, and their corresponding aftermarket equivalent. Please note, most engine anodes are produced in zinc.
1149096 is our part 02029BISTP
This is a brass plug with hex head and 1/4″ GAS or BSP thread. Fits pencils with 1/4″UNC thread
116-7011 is our part number 02021/1
This is a zinc pencil with 1/4″ UNC thread. Length 35mm
5B9169 is our part 02024TP or 02023TP
This is a brass plug with square head and thread 1/2″ GAS or BSP. Fits anodes with 3/8″ UNC thread
5B9651 is our part 02024-1
This is a zinc anode with 3/8″ UNC thread. Length 51mm
6L2016 is our part 02022
This is a zinc anode with 5/8″ UNF thread. Length 20mm
6L2020 is our part 02022TP
This is a brass plug with square head and 3/8″ GAS or BSP thread. Fits pencils with thread 5/8″UNF
6L2279 is our part 02027TP
This is a square head brass plug with 3/8″ GAS or BSP thread. Fits pencil anodes with 3/8″ UNC thread
6L2279G is our part 02029TP
This is a square head brass plug with 3/8″ BSPT thread. Fits pencil anodes with 7/16″ UNC thread
6L2280 is our part 02027
This is a zinc pencil with 3/8″ UNC thread. Length 40mm
6L2281 is our part 02027 or 02029
02027 is a zinc pencil with 3/8″ UNC thread so if you have existing plugs please check if it needs 3/8″ UNC or the older type with 7/16″ UNC.
02029 is a zinc pencil with 7/16″ UNC. Length 38mm
6L2282 is our part 02021TP
This is a brass plug with square head and 1/4″ BSPT thread. Fitz pencils with thread 1/4″ UNC
6L2283 is our part 02021
This is a zinc pencil with thread 1/4″ UNC. Length 55mm.
6L2284 is our part 02026
This is a zinc pencil with thread 3/4″ UNC. Length 54mm
6L2286 is our part 02026TP
Brass plug with square head and 1-1/4″ BSPT. Fits zinc pencil with thread 3/4″ UNC
6L2288 is our part 02024
This is a zinc pencil with thread 3/8″ UNC. Length 63mm
6L2289 is our part 02023
This is a zinc pencil with thread 3/8″ UNC. Length 76mm
6L3104 is our part 02029BIS
This is a zinc pencil with thread 1/4″ UNC. Length 38mm
7E5076 is our part 02028
This is a zinc pencil with thread 7/16″ UNC. Length 41mm
Caterpillar Engine Guides
We have collated lists of anodes required for certain model types. Please note that while we’ve taken care to verify these with as many customers as possible, there is always the odd one with a slightly different configuration, so it’s always best to check against your manual or against the physical engine wherever possible.
- 3116
- 3126
- 3126B
- 3196
- 3208
- 3306
- C-12
- C-30
- C-32
- C-7
- C-9
- C-18
