Page 499 - Custom Chrome Catalog

Flathead Big Twins Gaskets for 74" and 80"

Flatheads from 37-48
These gaskets and seals fit U, UL
2 and ULH Big Twin models.
2
7
11
10
1 6
1
16 12
9
8
15
4
14
3 13
5

Gaskets for Flathead Big Twins 37-48
No. OEM# Motor Qty Description Each Price
Factory
Cylinder Gaskets
1 16774-21 54107 10 Cylinder base, 37-48 $0.40
Rocker Box Gaskets
- 18198-38 54279 10 Valve guide, 37-48 $0.25
- 18259-39 54280 10 Lower valve cover, 37-48 $0.85
- 18260-29 54284 10 Valve Spring Cover Seal, 37-48 $0.50
- 18630-26 54281 10 Valve cover and guide, 37-48 $1.50
Cam Cover Gasket
4 25227-37 54277 10 Gear case cover, 37-48 $1.00
Primary Gaskets
13 60540-36 12046 10 Primary cover (cork), 37-48 $5.30
14 60565-36 12048 10 Clutch cover (cork), 37-48 $3.90
15 60567-36 12050 10 Inspection cover (cork), 37-48 $0.40
Transmission Gaskets
- 25811-11 54132 10 Neutral switch, 37-48 $0.40
10 33295-36 660371 10 Transmission side cover, 37-48, Syntheseal $1.40
- 34459-26 54183 10 Washer, shift shaft, 37-48 $0.70
11 34824-36 660400 10 Ratchet top, 37-48, Syntheseal $1.00
- 35231-36 25320 10 Mainshaft cork washer, 37-48 $1.00
12 36025-36 660517 10 Countershaft end cap, 36-47, Syntheseal $0.45
- 62702-52 54223 10 Drain plug, 37-48 $1.50
16 67141-36 54232 10 Speedometer drive to case, 37-48 $0.50
Oil Pump Gaskets
3 24921-37 54278 10 Oil pump relief pipe, 37-48 $0.45
6 26246-37 54134 10 Oil pump base and cover, 37-48 $0.40
Miscellaneous Gaskets
2 18631-30 54275 10 Tappet guide, front and rear, 37-48 $0.40
- 27376-28 54155 10 Float bowl nut washer $1.60
7 27410-39 54162 10 Intake manifold $0.80
- 30138-30 54240 10 Generator end cover, 37-48 $0.30
8 30143-58 660511 10 Generator mount, 37-48, Synthseal $0.45
9 32522-37 25313 10 Distributor base, 37-48 $0.75
Seals for Flathead Big Twins 37-48
- 18245-39 54283 10 Pushrod cover cork, upper, 37-48 $0.35
- 18257-39 54282 10 Pushrod cover cork, lower, 37-48 $0.70
- 33076-37 19077 10 Kickstart shaft, 36-47 (square type seal) $0.60
- 34036-36 54064 10 Shifter cam, 37-48 $1.20
- 35230-39 25103 EA Mainshaft, 41-48, (double lip) $2.49
- 37337-36 54205 10 Clutch pushrod cork, 37-48 $0.45 SERVICE

Motor Factory Transmission Gasket Kit and Parts for Early Models
Complete kit includes gaskets, seals and washers.
No. Description Each Price
19493
19493 Complete kit for 45" W, WL, WLA, G and ServiCar
models from 40-73 (repl. OEM 33030-41) $24.99
54191 Top cover gasket (repl. OEM 34825-41) pack of 10 $0.65
54192 Side cover gasket (repl. OEM 34826-41) pack of 10 $0.55
54064 Shifter cam shaft seal (repl. OEM 34036-36) pack of $1.20
10
54183 Shifter shaft washer (repl. OEM 34459-26) pack of $0.70
10
54193 Case cover seal (repl. OEM 34831-39) pack of 5 $0.80
54068 Clutch gear seal (repl. OEM 37465-41) pack of 5 $3.10
M19493 www.customchrome.com 6.29