To purchase parts for the 420GP (Main Assembly HD RF048300):
- Reference the part needed from the parts diagram and refer to the parts list below.
- Copy the Part Number and paste it into the search window above to see availability and pricing.
- Confirm your parts selection and "Add To Cart".

Item | Part Number | Description | QTY | Item | Part Number | Description | QTY | |
1 | MP381200 | HANDLE, w/ CLUTCH, ASM. | 1 | 27 | MP382600 | SKIRT, 21”, ASM. | 1 | |
2 | MP371800 | REGULATOR, ASM, SAFESTOP | 1 | 28 | NB7282 | CLAMP, HOSE | 3 | |
3 | MP8080 | BELT, BX-51 | 1 | 29 | MP4515 | TUBING, DRAIN, OIL | 18” | |
4 | NB6044 | BOLT, HEX, 3/8” X 1” | 3 | 30 | NB1621 | PLUG, CAP | 1 | |
5 | MX1075 | WASHER, LOCK, 3/8” | 3 | 31 | MP139600 | FELT, BLACK | 75” | |
6 | NB5520 | BOLT, CARRIAGE, 3/8” X 1-1/4” | 5 | 32 | NB8125 | CLAMP, 1/4” | 2 | |
7 | NB3267 | NUT, LOCK, 3/8” | 5 | 33 | MP446300 | PAD HOLDER, 21”, ASM. | 1 | |
8 | NB6110 | WASHER, LOCK, 1/4” | 2 | 34 | NB065100 | BOLT, HEX, M8 X 25 | 1 | |
9 | NB3350 | WASHER, FLAT, 1/4” | 10 | 35 | NB064900 | SCREW, #10 X 1/2” | 1 | |
10 | NB6545 | BOLT, HEX, 5/16” X 1” | 9 | 36 | MP6600 | FELT, VELCRO, BLACK | 27” | |
11 | NB9267 | WASHER, FLAT, 5/16” | 14 | 37 | MP392600 | PAD, ADAPTER | 1 | |
12 | NB3265 | NUT, LOCK, 5/16” | 6 | 38 | MG001000 | WEIGHT, FLAT, 17LBS | 5 | |
13 | MP367500 | TRAY, BATTERY | 1 | 39 | NB3260 | NUT, HEX, 5/16” | 4 | |
14 | NB001800 | BOLT, HEX, 5/16” X 1-1/4” | 1 | 40 | MG006400 | ADAPTER, TUBE, VACUUM | 1 | |
15 | MP362200 | BATTERY, 12V | 1 | 41 | NB046300 | PIN, LYNCH, 1/4” X 1-3/4” | 2 | |
16 | MP368100 | STRAP, 2” X 23” | 5 | 42 | NB5000 | BOLT, CARRIAGE, 5/16” X 1” | 4 | |
17 | MP368600 | SOLENOID, ASM. | 1 | 43 | MP462300 | BRACKET, WEIGHT, ASM. | 1 | |
18 | NB6111 | WASHER, LOCK, 5/16” | 7 | 44 | MP463200 | DRIVER, DIAMOND, 21”, ASM. | 1 | |
19 | MP195300 | SPACER, BEARING | 1 | 45 | NB049000 | SCREW, BH, 1/4” X 3/4” | 4 | |
20 | NB3450 | WASHER, FLAT, 3/8” | 10 | 46 | MP462900 | TANK, 6 GAL., ASM. | 1 | |
21 | NB3275 | NUT, LOCK, 1/4” | 9 | 47 | MP463700 | TUBE, DUST, VACUUM | 1 | |
22 | NB6530 | BOLT, HEX, 1/4” X 1” | 7 | 48 | MP464000 | CAP, VINYL | 1 | |
23 | MP367600 | SLIDE, STRAP, 2” | 1 | 49 | MP199900 | MOUNT, VIBRATION | 1 | |
24 | MP107200 | KNOB, HANDLE, ASM. | 2 | 50 | MP462800 | INSULATION, HEAT | 1 | |
25 | NB8130 | CLAMP, 3/4” | 2 | 51 | MP518800 | RELAY/LIGHT ASM, SAFESTOP | 1 | |
26 | MP380700 | BRACKET, PUMP/TANK, ASM. | 1 | 52 | NB025400 | WASHER, FLAT, 1/4, SS | 4 |