/SURPLUSMAN/MARINE TRANSMISSION PARTS
454 Items
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Drive Ring B5880 Twin Disc

Drive Ring B5880 Twin Disc, Used, SAE 11.5
(for MG-510 SAE 2)
SMID: 103-7730-971
Condition: Excellent
$375.00

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Drive Ring A6816 Twin Disc

Drive Ring A6816 Twin Disc, Used. SAE 11.5
SMID: 103-7732-451
Condition: Good
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Drive Ring B5880 Twin Disc

Drive Ring B5880 Twin Disc, NEW. Also available used, (click here)
SMID: 103-7745-103
Condition: Surplus - New unused
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Allison Planetary RS 6750772, 6750774

Allison Planetary RS 6750772, 6750774, Fits Allison M, MH, M1A Marine Transmissions, Right Hand Rotation
SMID: 103-9232-267
Condition: Good
$550.00

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Allison Planetary LP 6700227, 6700228

Allison Planetary LP 6700227, 6700228, Fits Allison M, MH, M1A Marine Transmissions, Left Hand Rotation
SMID: 103-9232-946
Condition: Surplus - Low time
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Gear Set, MG-509 2 to 1, B5097, B5098

Gear Set, MG-509 2 to 1, Pinion(2ea) B5097, Bull B5098
SMID: 104-6225-245
Condition: Excellent
Call for Price

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Gear Set, Allison M11, 6883614, 6883614

Gear Set, Allison M11, Pinion 31 teeth 6883614, Bull Gear 33 teeth 6883614.
SMID: 104-9406-659
Condition: Excellent
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Allison Forward Clutch, used

Allison Forward Clutch, used part # 5101603
SMID: 104-9920-005
Condition: Excellent
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Borg Warner Mounts 5127279

Borg Warner Mounts 5127279
SMID: 105-1219-599
Condition: Good
$150.00

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Allison Marine Transmision Pump 5112419

Allison Marine Transmision Pump 5112419, Right
SMID: 105-1400-656
Condition: Good
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Twin Disc Trolling Valve A6582A

Twin Disc Trolling Valve A 6582 A
SMID: 105-1402-714
Condition: Good
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Bull Gear, Allison MH30 3 to 1, 6700199

Bull Gear, Allison MH30, 6700199, 74 teeth, for a 2.96 to 1 reduction
SMID: 105-1992-664
Condition: Good
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pinion-gear-allison-mh30-3-to-1-6751916 Image

Pinion Gear, Allison MH30 3 to 1, 6751916

Pinion Gear, Allison MH30 3 to 1, 6751916, 25 teeth, for a 2.96 to 1 reduction
SMID: 105-1993-226
Condition: Good
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Allison ReverseClutch Backing 6701049

Allison ReverseClutch Backing 6701049
SMID: 105-1993-690
Condition: Excellent
$180.00

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Twin Disc Flange B6101D

Twin Disc Flange B 6101 D, maybe new unused?
SMID: 105-3207-574
Condition: Excellent
Call for Price

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Twin Disc A7045, MG-506 case SAE 2

Twin Disc MG-506 case SAE 2
cover casting A7045
SMID: 107-0586-429
Condition: Good
$590.00

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Twin Disc MG-514 C 2:1 Pinion Gear

Twin Disc MG-514 C 2:1 Pinion Gear. Part no. A6980. Several available. Large supply of Twin Disc parts.
SMID: 107-5828-426
Condition: Excellent
$460.00

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Twin Disc MG-514 C 2:1 Pinion Gear

Twin Disc MG-514 C 2:1 Pinion Gear. Several available. Large supply of Twin Disc parts.
SMID: 107-5828-766
Condition: Excellent
$460.00

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Twin Disc A6980, MG-514 B 2:1 Pinion Gear

NSN: 3020-01-240-8793
A6980, Twin Disc MG-514 B 2:1 Pinion Gear.
SMID: 107-5828-986
Condition: Excellent
$490.00

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Twin Disc MG-514 C 3:1 Pinion Gear

Twin Disc MG-514 C 3:1 Pinion Gear. Part no. A6980A. Several available. Large supply of Twin Disc parts
SMID: 107-5829-249
Condition: Excellent
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Twin Disc MG-514 Bull Gear

Twin Disc MG-514 Bull Gear, part no. A4396. Several available. Large supply of Twin disc parts.
SMID: 107-5829-492
Condition: Excellent
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Twin Disc MG-514 C 4.13:1 Pinion Gear

Twin Disc MG-514 C 4.13:1 Pinion Gear. Several to choose from. Large selection of Twin disc parts.
SMID: 107-5830-177
Condition: Excellent
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Twin Disc MG-509 Output Shaft

Twin Disc MG-509 Output Shaft. For Big Case transmissions. Part no. A4343A. Large supply of Twin Disc parts.
SMID: 107-5830-493
Condition: Excellent
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twin-disc-mg-5222-output-flange Image

Twin Disc MG-5222 Output Flange

Twin Disc MG-5222 Output Flange. Large supply of Twin Disc parts available
SMID: 107-5830-669
Condition: Excellent
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Twin Disc MG-514B Pinion Gear

Twin Disc MG-514B Pinion Gear. 4.5:1 ratio. Part no. A690. Several available
SMID: 107-5910-892
Condition: Excellent
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Hydraulic Pump for Twin Disc

Hydraulic Pump for Twin Disc. Model no. XB5885, Serial no. 671053. New in box
SMID: 107-5911-093
Condition: New
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Twin Disc MG-514C Pinion Gear

Twin Disc MG-514C Pinion Gear. 1.512:1 ratio. Several available. Part no. B5126
SMID: 107-5911-300
Condition: Excellent
Call for Price

twin-disc-mg-509-pinion-gear Image

Twin Disc MG-509 Pinion Gear

Twin Disc MG-509 Pinion Gear. Several available. Part no. B5103.
SMID: 107-5911-463
Condition: Excellent
Call for Price

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Twin Disc MG-514C Pinion Gear

Twin Disc MG-514C Pinion Gear. Several available. Part no. B5046A
SMID: 107-5911-620
Condition: Excellent
Call for Price

twin-disc-model-mg-509-pinion-gear Image

Twin Disc Model MG-509 Pinion Gear

Twin Disc Model MG-509 Pinion Gear. 1.454:1 ratio. Several available. Part no. B5103.
SMID: 107-5912-114
Condition: Excellent
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twin-disc-mg-506-pinion-gear Image

Twin Disc MG-506 Pinion Gear

Twin Disc MG-506 Pinion Gear. 1.5:1 ratio. Several available. Part no. B5659.
SMID: 107-5912-291
Condition: Excellent
Call for Price

twin-disc-model-mg-514-bull-gear Image

Twin Disc Model MG-514 Bull Gear

Twin Disc Model MG-514 Bull Gear. Several available. 6:1 ratio. Part #A6874.
SMID: 107-5912-545
Condition: Excellent
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Twin Disc MG-514C Bull Gear

Twin Disc MG-514C Bull Gear. 1.512:1 ratio. Part no. A6950. Several available
SMID: 107-5913-123
Condition: Excellent
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Twin Disc Model MG-514C Front Housing XA7328

Twin Disc Model MG-514C Front Housing. SAE 0. Part no. A7328 Wide selection of housings, cases, etc.
SMID: 107-5913-341
Condition: Excellent
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Twin Disc Drive Ring Part no. A6441A

Twin Disc Drive Ring, Part number A6441A. For no. 1 housing. Direct bolt on to flywheel for Twin Disc X8708 "crash box" flywheel. Exchange X8708 transmission for MG 509 transmission without changing flywheel Part number A-6441-A.
SMID: 108-0416-648
Condition: Excellent
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B6309, Twin Disc MG-5111 New Companion Flange

B6309, Twin Disc Surplus New Companion Flange. 9" flange diameter, collar 5 1/4" long x 5 1/2" dia. Pilot hole through flange, can be bored for any size shaft diameter. Direct bolt-on to Twin Disc MG-5111 Transmission, others.
SMID: 108-5409-428
Condition: Surplus - New unused
$390.00

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Allison M20 Companion Flange

Allison Companion Flange. Fits 1 3/4" prop shaft. 7 1/4" dia across face of flange, 6" across bolt holes.6 bolt pattern. Fits Allison M20 Gear.
SMID: 108-5421-453
Condition: Good
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ZF BW-750 gear sets 2.33 to 1

ZF BW750 gear sets 2.33 to 1, BW 750 includes 2 each pinions and 2 each bull gears. Where used in jet drive application. Are in excellent condition and are preserved.
SMID: 108-5426-820
Condition: Excellent
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Companion Flange T.D. no B6162

Companion Flange T.D. no B6162. Fits Twin Disc model MG-514 gear. Never used, has 2 1/4" pilot hole, can be bored for any size shaft. Flange face 11" diameter, 9 1/2" across bolt holes. 8 bolt pattern. Collar 9" long x 8 1/4" diameter.
SMID: 108-5504-094
Condition: Surplus - New unused
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twin-disc-mg-514-transmission-mounts Image

Twin Disc MG-514 transmission mounts

Twin Disc MG-514 transmission mounts. Used, as pictured.
SMID: 108-6384-355
Condition: Excellent
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