Twin Disc MG 5091 Marine Transmission Parts for Sale for Canada - Overhaul Plate Kit Section

Twin Disc MG-5091 Marine Transmission Parts — Overhaul Plate Kit Section

Welcome to the Twin Disc MG-5091 Overhaul Plate Kit and related service components catalog—your focused source for the exact clutch packs, gasket and seal kit (shallow case), rubber mount isolators, and supporting items the MG-5091 requires. Each listing is presented in a technician-first format—what the part is, what it includes, what it fixes, and why Diesel Pro Power is the right supplier—so you can move from symptom to solution quickly. Whether you’re correcting slip, stopping oil weep, reducing vibration, or restoring stable hydraulic flow, this page delivers MG-5091–specific parts and practical install notes that shorten downtime and return your gear to crisp, repeatable engagement on sea trial.

Overhaul Plate Kit for Twin Disc MG-5091

What this part is
A complete clutch pack refresh engineered specifically for the Twin Disc MG-5091. This kit restores crisp engagement and reliable torque transfer by renewing the friction interface and the steel mating surfaces inside the MG-5091 clutch assemblies.

What it includes

• Friction plates precisely matched to MG-5091 control pressures and thermal loads.
  
  

• Steel separator plates ground for flatness and parallelism to prevent hot spots.
  
  

• Setup guidance for correct clutch pack height and plate order.
  
  

• Assembly aids (where applicable) to simplify staging, indexing, and pre-lubrication.
  
  

What it fixes

• Slipping under load when shifting ahead or astern.
  
  

• Harsh, delayed, or double-bump engagement caused by worn or glazed plates.
  
  

• Burnt odor and dark debris in oil from overheated clutches.
  
  

• Inconsistent maneuvering control during docking or tight quarters operations.
  
  

MG-5091 fitment notes

• Specified to the MG-5091 clutch design, control pressure ranges, and case geometry.
  
  

• Plate count, thickness, and stack height guidance align with MG-5091 service data.
  
  

• Compatible with marine lubricants commonly used with MG-5091 transmissions.
  
  

Signs you likely need this kit

• RPM flares without proportional vessel movement when engaging gear.
  
  

• Shudder on pickup or a “grab–release–grab” sensation at the lever.
  
  

• Elevated gear temperature after frequent low-speed maneuvers.
  
  

• Metallic/fibrous residue in the strainer after short intervals.
  
  

Installation highlights

• Measure as-found pack height before teardown; record counts and clearances.
  
  

• Dry-stage the stack to confirm order and quantity, then pre-lube all plates.
  
  

• Inspect steels for warp; replace any heat-spotted or blued components.
  
  

• Torque carrier hardware in a cross pattern to spec; verify runout.
  
  

• Warm, no-load run-in, followed by progressive load checks; recheck oil and leaks.
  
  

Related MG-5091 items to consider during clutch work

• Gasket & Seal Kit (reseal disturbed covers and bores).
  
  

• Oil strainer service (clean/replace to protect fresh clutches).
  
  

• Mount isolators (rubber blocks) if alignment stability is a known issue.
  
  

Gasket & Seal Kit for Twin Disc MG-5091 (Shallow Case)

What this part is
A complete reseal solution tailored to MG-5091 shallow case geometry. Replacing aged gaskets, O-rings, and shaft seals restores leak-free operation and stabilizes internal hydraulic pressures after clutch service or routine maintenance.

What it includes

• Case and cover gaskets cut to MG-5091 patterns.
  
  

• Lip seals and O-rings for input/output shafts and control interfaces.
  
  

• Crush washers (where applicable) for serviceable ports and plugs.
  
  

What it fixes

• Chronic oil film or weep that returns soon after wipe-downs.
  
  

• Aeration/foaming from air ingress at tired seals.
  
  

• Loss of control pressure via internal leakage paths.
  
  

• Messy bilge conditions that can shorten clutch life.
  
  

MG-5091 fitment notes

• Profiles and diameters match MG-5091 shallow case interfaces and tolerances.
  
  

• Materials withstand marine oils and thermal cycling typical of MG-5091 service.
  
  

• Recommended whenever the case is opened for clutch, coupling, or inspection work.
  
  

Signs you likely need this kit

• Repeat top-offs with no obvious drip—suggesting misting or slight seepage.
  
  

• Dampness at selector cover, inspection plates, or shaft exits.
  
  

• Fresh oil smear reappearing shortly after short sea trials.
  
  

Installation highlights

• Clean mating faces thoroughly; avoid gouging aluminum surfaces.
  
  

• Lightly oil seal lips; use guide sleeves over splines to prevent nicks.
  
  

• Seat and torque port fittings on clean, burr-free faces; confirm crush washer conformity.
  
  

• Run test and reinspect perimeters/rotating shafts for early detection of seepage.
  
  

Related MG-5091 items to consider

• Overhaul Plate Kit (fresh clutches benefit from a tight, leak-free case).
  
  

• Oil strainer cleaning/replacement if the housing has been opened.
  
  

• Approved lubricant per MG-5091 recommendations after a full reseal.
  
  

Rubber Block (Mount Isolator) for Twin Disc MG-5091 Installations

What this part is
A vibration-damping isolator used to support and stabilize the MG-5091 and adjacent drivetrain components. Proper isolation reduces shock transfer to the hull and helps maintain precise alignment over time.

What it includes

• Marine-grade elastomer element designed for compression and shear loads.
  
  

• Bonded/captured interfaces (design varies) for secure mounting and repeatable preload.
  
  

What it fixes

• Persistent vibration through deck or structure at cruise RPM.
  
  

• Alignment drift that returns after a seemingly perfect shaft alignment.
  
  

• Premature wear on couplings, seals, and bearings due to hard mounting.
  
  

• Structure-borne noise that migrates through stringers or hull frames.
  
  

MG-5091 fitment notes

• Select by load rating, footprint, and geometry appropriate for MG-5091 installations.
  
  

• Supports thrust and torque reactions typical of MG-5091 service envelopes.
  
  

Signs you likely need this part

• Compression set, cracks, or delamination on existing mounts.
  
  

• Noticeable bump when shifting from neutral into gear.
  
  

• Vibration worsening under load but easing off-throttle.
  
  

Installation highlights

• Replace in matched sets to maintain equal support height and stiffness.
  
  

• Re-align engine and gear afterward; verify coupling face and bore readings.
  
  

• Re-torque after initial operating hours as the elastomer settles.
  
  

Related MG-5091 items to consider

• Gasket & Seal Kit if misalignment has stressed seal lips.
  
  

• Overhaul Plate Kit if vibration-related chatter has glazed the clutches.
  
  

• Oil strainer service following any alignment-related teardown.
  
  

MG-5091 Symptom-to-Parts Quick Guide

Slipping or delayed engagement — Start with the Overhaul Plate Kit, then service the oil strainer and verify control pressure.
Recurring oil film or misting — Install the Gasket & Seal Kit; verify venting and mating surface finish.
Chatter or driveline vibration — Inspect/replace Rubber Blocks, confirm alignment, then evaluate coupling condition.
Low/erratic pressure alarms — Clean/replace the oil strainer, verify pickup integrity, and reseal with the Gasket & Seal Kit if needed.
Alignment won’t hold — Replace Rubber Blocks, re-shim, and re-verify coupling face/bore readings.

MG-5091 Selection & Ordering Checklist

Confirm the gear: Verify MG-5091 on the data plate (model and ratio).
Match symptoms to parts:

• Slipping/heat → Overhaul Plate Kit + strainer service.
  
  

• Weeping/aeration → Gasket & Seal Kit.
  
  

• Vibration/chatter → Rubber Blocks + alignment check.
  
  

• Pressure alarms/debris → Oil strainer cleaning or replacement.
  Plan the maintenance window: Order all interdependent items together to minimize downtime.
  Aftercare: Early oil and strainer service after initial operating hours post-repair.
  
  

Why Buy Overhaul Plate Kits For The Twin Disc 5091 From Diesel Pro Power

MG-5091–Specific Coverage

Focused fit for your exact gear
Every component above is curated exclusively for the Twin Disc MG-5091. Our catalog maps symptoms to solutions using MG-5091 geometry, pressures, and service routines—so you can select the right parts without wading through unrelated models.

Compatibility across the job
By pairing the Overhaul Plate Kit, Gasket & Seal Kit, and Rubber Blocks from one knowledgeable source, you reduce mismatch risk and ensure sealing materials, plate thickness, and isolation characteristics work together for the MG-5091.

Proven Reliability and Marine-Ready Quality

Built for real-world duty
We emphasize plate flatness, repeatable friction characteristics, seal lip integrity, and durable mount elastomers—details that separate a crisp engagement from lost weekends of troubleshooting.

Consistency you can measure
From steel parallelism to gasket fit, the parts we supply for the MG-5091 are selected for fit, finish, and repeatability, helping your crew complete the job right the first time.

Expert, Technician-First Guidance

Catalog clarity
Each product page presents what the part is, what it includes, what it fixes, and how to install it—written in the language of working marine mechanics and yard teams focused on the MG-5091.

Real-world pointers
From dry-staging clutch stacks to rechecking torque and alignment after the first warm run, our guidance removes guesswork and speeds commissioning.

Streamlined Fulfillment and Support

Simplified ordering
We keep MG-5091 essentials organized so you can stage the overhaul kit, reseal set, and isolators together—shrinking maintenance windows and limiting repeat haul-outs.

No-nonsense follow-through
If you need help, we focus on resolution: verifying selections, walking symptoms, and making things right so the vessel returns to service quickly.

Trusted by a Large Customer Base

Confidence at scale
Diesel Pro Power has served 40,000+ satisfied customers—including fleets and shipyards that depend on clear MG-5091 guidance and dependable parts.

Bottom Line for MG-5091 Owners

Fewer variables. Faster turnarounds. Better outcomes.
Choose MG-5091-specific overhaul and service components, apply technician-ready guidance, and complete your maintenance window with confidence. Diesel Pro Power delivers the parts, clarity, and experience to keep your Twin Disc MG-5091 engaging cleanly and running strong.