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About MTX60HD Jumping Jack Rammer Parts by Multiquip Mikasa
Genuine OEM Parts for the Multiquip Mikasa MTX60HD Tamping Rammer
The Multiquip Mikasa MTX60HD is the workhorse of the cohesive-soil compaction trade — the rammer pipeline crews, utility contractors, and municipal road crews reach for when they need to compact backfill in a 12-inch trench at full impact force. Powered by the Honda GX100RTKRBF four-stroke overhead-camshaft gasoline engine and engineered around a laminated-wood-and-tempered-steel foot, the MTX60HD delivers 3,060 lbf (13.6 kN) of impact force at up to 695 blows per minute with an operating weight of just 141 lbs.
When yours stops jumping, leaks oil from the bellows, or won't start on a cold morning, downtime costs more than the part. DanseUSA stocks the complete Multiquip OEM parts catalog for the MTX60HD — every component called out in Parts Manual Revision #11 (01/06/25), from the smallest O-ring on the carburetor to the full clutch assembly. We've been an authorized construction-equipment parts dealer since 1981, and every part on this page ships in genuine Multiquip packaging with the matching Multiquip part number on the label.
What MTX60HD Are You Servicing?
This page covers all production years of the Multiquip MTX60HD with the Honda GX100RTKRBF engine. The MTX60HD shares many wear parts with the larger MTX70HD and MTX80HD platforms, but the engine, foot assembly (265 × 340 mm shoe), and bellows clamps are unique to the 60HD — always confirm the model and engine type stamped on the serial plate before ordering.
| Item | Detail |
|---|---|
| Model | MTX60HD |
| Series | Mikasa |
| Engine | Honda GX100RTKRBF (98 cc, 3.0 hp) |
| Foot Assembly Code | 362910150 (FOOT ASSY. 265W M4B) |
| Shoe Size | 10.4 × 13.4 in (265 × 340 mm) |
| Operation Manual Rev. | #10 (11/30/22) |
| Parts Manual Rev. | #11 (01/06/25) |
If your serial plate is illegible or missing, email [email protected] with photos of the engine and foot — we'll match the parts to the right generation.
MTX60HD Full Specifications
Rammer
| Parameter | Value |
|---|---|
| Overall Height | 38.8 in (985 mm) |
| Overall Width | 13.8 in (350 mm) |
| Overall Length | 28.1 in (713 mm) |
| Shoe Size (W × L) | 10.4 × 13.4 in (265 × 340 mm) |
| Fuel Tank Capacity | 2.7 qt (2.5 L) |
| Bellows Oil Bath Capacity | 0.69 qt (0.65 L) |
| Impacts per Second | 644 – 695 (10.7 – 11.6 Hz) |
| Impact Force | 3,060 lbf (13.6 kN) |
| Impact Plate Stroke | 2 – 3.2 in (50 – 80 mm) |
| Operating Weight | 141 lbs (64 kg) |
Engine — Honda GX100RTKRBF
| Parameter | Value |
|---|---|
| Type | Air-cooled 4-stroke OHC, single cylinder |
| Piston Displacement | 6.0 cu.in. (98 cc) |
| Max Output | 3.0 hp @ 3,600 rpm (2.2 kW) |
| Max Governed Speed (No Load) | 3,800 – 4,100 rpm |
| Engine Oil Capacity | 0.3 qt (0.28 L) |
| Fuel | Unleaded gasoline |
| Engine Lubricant | Automobile oil, Class SE or higher |
| Starting System | Recoil starter |
| Spark Plug | NGK CR5HSB |
Noise & Vibration
| Parameter | Value |
|---|---|
| Measured Sound Power Level | 103 dB(A) |
| Guaranteed Sound Power Level | 107 dB(A) |
| Sound Pressure at Operator Station | 92 dB(A) |
| Hand-Arm Vibration | 5.2 m/s² |
The Eleven MTX60HD Parts You'll Replace First
Multiquip's own engineers publish a Suggested Spare Parts list for fleet operators running 1–3 MTX60HD units (Parts Manual Rev. #11, page 5). These are the parts that wear out first under normal job-site conditions, and stocking them on the truck means a 5-minute swap instead of a full day of downtime. Every one of these is in stock at DanseUSA:
| Multiquip Part No. | Part Name | Recommended Stock |
|---|---|---|
| 956100062 | Throttle Wire (Combination Lever) | 1 |
| 366010070 | Primary Element, Air Cleaner | 3 |
| 366010080 | Secondary Element, Air Cleaner | 3 |
| 366350460 | Fuel Tank Cap Assembly | 1 |
| 16910Z4ES21 | In-Line Fuel Filter | 2 |
| 9805655777 | Spark Plug (NGK CR5HSB) | 3 |
| 954406010 | Fuel Tank Strainer | 1 |
| 28400-Z0D-V04ZA | Recoil Starter Assembly (full) | 1 |
| 956200110 | Combination Lever (without throttle wire) | 1 |
| 366900170 | Cup and Packing Set (Filter Holder) | 1 |
| 366348550 | Clutch Assembly | 1 |
MTX60HD Parts by Major Assembly
The MTX60HD parts manual organizes the machine into twelve major assemblies. Use this as your map when diagnosing a failure — the symptom usually points directly to the assembly.
Crankcase and Engine Assembly
The mechanical heart of the rammer. Houses the crankshaft (368347270), piston rod (368347290), connecting rod (368347250), pinion drum (368347410), engine flange (368217640), shock absorber bracket (368347490), and the clutch assembly (366348550) that engages the rammer foot when engine speed crosses the centrifugal threshold. Air cleaner assembly (366900010) with primary element 366010070 and secondary element 366010080 mounts here. Wire harness 368461280 routes through this assembly.
Guide Cylinder Assembly
The compaction column. Includes piston pin (368461210), piston rod (368347290), main springs (368461270), spring cylinder (368347281), foot plate (368217710), cylinder guide (368217720), bellows (368346180 — the orange one), bellows clamps 131D (368347520) and 149D (368347530), oil gauge sight glass (366460300), and all O-rings (G-80, G-85, G-115, G-130, P-80). When the bellows leaks oil or the spring fatigues, this is where you order.
Foot Assembly (362910150 — 265W M4B)
The 10.4-inch business end. Includes the foot housing, lift handle (363343390), foot cover (368347460), and the seven square-neck bolts (10×55 — 009110036) plus seven nylon nuts (M10 — 022711012) and lock washers that secure the laminated wood-and-steel foot pad. When the wood splits or the bolts strip, you typically replace the foot assembly as a unit.
Fuel Tank and Handle Assembly
The operator-facing controls. Shock absorbers (368347630 × 2), handle (368119572), fuel tank (366120250), fuel tank cap assembly (366350460), fuel tank strainer (954406010 — #110), all fuel hoses and clamps, in-line fuel filter (16910Z4ES21), the tach/hour meter (955010311) with curl cord (955010305) and meter finisher (366345620), the rollers (366217170 × 2 in roller assembly 366910030), and the EPA-compliant return hose (959028301). This is the assembly EPA evaporative regulations changed — the cup-and-packing set (366900170) is the maintenance-rebuild kit for the filter holder.
Combination Lever Assembly
The throttle/stop control. Available with throttle wire (366900032) or without throttle wire (956200110). Includes the fuel cock (366349430), lever (366010310), slider (366010190), end cap (366010200), wire cap (366010210), bolt-and-washer set (366010220), stop switch (366010320), throttle wire (956100062), and all O-rings. When the operator's throttle response gets sloppy or the stop switch fails, this assembly fixes it.
Honda GX100RTKRBF Engine Subassemblies
The engine breaks down into eleven subsystems, each with its own parts page in Multiquip's manual:
- Cylinder Barrel Assembly — Cylinder block (12000Z0D405), valve guides (intake 12204Z0D305 / exhaust 12201Z0D305), head cover, breather assembly, crankcase oil seal (91202KJ9003), spark plug (9805655777).
- Crankcase Cover Assembly — Cover (11300Z0D409), oil filler cap assembly (15600ZM7003) with packing (15625Z0T800), governor assembly (16510ZL8000) with slider (16531ZE1000), shaft (16541Z0D000), thrust washer, drain plug bolt and washer, and radial ball bearing 6204 (91001Z0DV01).
- Crankshaft Assembly — Crankshaft complete (13310Z0DV70) including its radial ball bearing.
- Piston/Connecting Rod Assembly — Piston ring set (13010Z0D003), piston (13101Z0D000), piston pin (13111ZE0000), connecting rod assembly (13200Z0D000), piston-pin clips (90551ZE0000).
- Camshaft Assembly — Cam pulley (14320ZDD000), cam pulley shaft (14324Z0D000), timing belt (14400Z0D003), intake rocker arm (14431ZDD000), exhaust rocker arm (14441ZDD000), inlet valve (14711Z0D000), exhaust valve (14721Z0D000), valve springs (14751Z0D000) and retainers (14771ZM3010), tappet adjusting screws and nuts.
- Recoil Starter Assembly (28400Z0DV04ZA) — Full assembly including case, reel, ratchets, ratchet guide, friction spring, recoil spring, starter knob (28461ZH8013), rope (28462Z0DV03), and slide plates.
- Fan Cover Assembly — Fan cover complete (19610Z4ES30ZA) with four 6×14 flange bolts.
- Carburetor Assembly — Two variants: carburetor with primer (16100Z4ES46) and earlier carburetor without primer (16100Z4ES16). Each ships with full diaphragm/gasket/jet kit on its dedicated product page.
- Muffler Assembly — Muffler (18310Z0DV20), muffler protector (18321Z0DV22), muffler gasket (18381Z0D000), studs and self-locking nuts.
- Flywheel Ignition Assembly — Ignition coil assembly (30500Z0DV02), terminal assembly (30700Z0DV01), high-tension cord clip (30701883000), flywheel (131110Z0D003), Woodruff key (13331ZM7000), starter pulley (28451Z0DV03), stop switch cord (32195Z0D000), 12 mm flange nut.
- Control Assembly — Control assembly (16500Z4ES30), governor arm complete (16550Z0DV01), governor rod (16555Z0DV00), governor spring (16561Z0DV00), throttle return spring (16562Z4ES10).
Specialty Service Tools
The MTX60HD requires three specialty tools that aren't held in most general-purpose shops:
- 983010090 — Clutch Puller A
- 983010060 — Clutch Mounter
- 983910090 — Piston Rod Holder
- 009110044 — 8×50 Socket Head Bolt (Crank Gear Remover, full thread, qty 2)
- 983010042 — Spring Cylinder Remover
- 983910010 — Piston End Remover
Note: Clutch Puller B (983910021) is no longer available from Multiquip — Clutch Puller A (983010090) is the current part.
MTX60HD Maintenance Schedule — Buy What You'll Need, When You'll Need It
Multiquip's official MTX60HD maintenance schedule (Operation Manual Rev. #10, Page 18) tells you exactly which parts to replace on which interval. Stock the right consumables on the truck and you turn unscheduled downtime into 5-minute roadside service.
| Interval | Service Item | Multiquip Part No. |
|---|---|---|
| Daily | Inspect & clean primary air cleaner element | 366010070 |
| Daily | Check spring box and bellows for oil leaks | Bellows 368346180 |
| Every 50 hours | Inspect/replace in-line fuel filter | 16910Z4ES21 |
| Every 50 hours | Clean spark plug, gap to 0.024–0.028 in (0.6–0.7 mm) | 9805655777 |
| Every 80 – 100 hours | Wash & re-oil primary air cleaner element | 366010070 |
| Every 200 hours | Drain & refill bellows oil bath (10W-30 SE/SF, 0.65 L) | (oil only) |
| First 50 hours | Break-in oil change for bellows | (oil only) |
| Every 6 months | Clean fuel tank with solvent | (cleaning service) |
| Every 6 months | Inspect/clean fuel tank strainer | 954406010 |
| Every 2 years | Replace fuel line even if no visible damage | Hose 959328402 / 959328403 |
| Long-term storage | Drain fuel from tank and hose, replace lubrication oil | (consumables) |
Order the bellows oil bath as 10W-30 SE, SF or higher grade — 0.69 quarts (0.65 liters) per change. Bring the level to the midpoint of the sight glass, not the top — overfilling the bellows is the most common installation mistake on this machine and will cause the foot to jump erratically.
Common MTX60HD Failures and the Parts That Fix Them
Pulled directly from the official troubleshooting tables in Operation Manual Rev. #10, Pages 19–21 — paired with the Multiquip part number for the fix.
Engine cranks but won't start, no spark
- Bridged or carbon-fouled spark plug → 9805655777
- Defective ignition coil → 30500Z0DV02
- Stop switch shorted → 366010320
Engine cranks but won't start, has spark
- Wrong fuel or water in fuel system → drain, replace, install new fuel filter 16910Z4ES21 and strainer 954406010
- Carburetor stuck or jet clogged → 16100Z4ES46 (with primer) or 16100Z4ES16 (without primer)
- Air cleaner clogged → primary 366010070 + secondary 366010080
Engine runs but rammer jumps erratically or not at all
- Throttle lever not at full RPM → check combination lever 956200110
- Excess oil in bellows — drain to sight glass midpoint
- Clutch slipping → 366348550
- Spring failure → main spring 368461270
- Engine speed off — check governor spring 16561Z0DV00 and throttle return spring 16562Z4ES10
Recoil pulls but engine won't catch
- Recoil rope broken → full recoil starter assembly 28400Z0DV04ZA (or rope only 28462Z0DV03, knob 28461ZH8013)
- Recoil spring fatigued → spring 28442ZH8003 (sold as part of full recoil assembly)
Black exhaust smoke under load
- Choke stuck closed → choke valve 16059Z0DV03
- Air cleaner clogged → 366010070 + 366010080
- Carburetor running rich → rebuild with diaphragm assembly (in 16100Z4ES46/16100Z4ES16 carburetor kit)
White exhaust smoke continuously
- Wrong viscosity oil → drain, refill with 10W-30 SE/SF
- Worn piston rings → ring set 13010Z0D003 and piston 13101Z0D000
Oil leaking from bellows
- Bellows torn → orange bellows 368346180 + clamps 131D 368347520 and 149D 368347530
- Foot housing oil seal worn → cylinder guide O-rings (P-80, G-85, G-115, G-130)
Why Genuine OEM Multiquip Parts Matter on a Tamping Rammer
A jumping jack rammer experiences impact forces that no other piece of light construction equipment sees — 3,060 lbf, 695 times per minute, eleven hours a shift. A clutch spring that's 5% out of spec doesn't just wear faster; it imbalances the entire compaction column, accelerates wear on the spring cylinder, and shortens the bellows life by a third. Aftermarket "compatible" parts almost always change the spring rate, the bolt grade, or the seal compound — savings on the part, paid back in shop hours within the year.
DanseUSA ships Multiquip OEM parts in original Multiquip packaging, with the matching Multiquip part number on the label, sourced through authorized Multiquip supply channels since 1981. Using genuine parts also keeps your manufacturer warranty intact — Multiquip will void coverage on a warranty claim where aftermarket parts caused or contributed to the failure.
How to Order MTX60HD Parts from DanseUSA
- Identify the assembly — Use the component diagram (Operation Manual Page 12) to locate your failure point.
- Find the part number — Cross-reference against Parts Manual Rev. #11. If you don't have the manual, email us — we'll send the relevant page.
- Confirm the engine code — Verify "Honda GX100RTKRBF" on your engine before ordering carburetor, recoil, or ignition parts.
-
Order online or by email — Search the part number on
danseusa.com, or email[email protected]with the part number and your shipping ZIP for a same-business-day quote.
For fleet operators running multiple MTX60HD units, ask about the full Multiquip-Recommended Suggested Spare Parts kit as a single shipment.
Questions on Your MTX60HD?
Email [email protected] with photos of the engine serial plate and the assembly you're working on, and we'll cross-reference the parts manual revision against your unit before you place the order. Same-business-day response on all parts inquiries.
Frequently Asked Questions
Match the Ref. # on the diagram to the row in the parts list at the right. Click a part name to see details, price, and add it to cart.
Confirm your model/series and serial number range on the product page. Many manufacturers have serial breaks, when in doubt, share your model and serial with us and we’ll verify fit.
The Ref. # points to the callout on the drawing. Qty shows how many of that item your machine uses. Parts are sold individually unless noted as a kit.
Yes, we supply genuine OEM parts for all our brands. If a part has an approved replacement, we ship the latest superseded revision
Manufacturers often supersede numbers. Our pages list the current orderable number and show older numbers in the description when available. Your old number will cross-reference to the correct part.
Yes. Some items are not pictured or are shared with other assemblies. Send us the model, serial, and a description (or photo) and we’ll locate it.
Yes. DanseUSA passes the manufacturer’s warranty to you. Coverage applies to defects in materials and workmanship under normal use for 30 days from the purchase date, in line with the manufacturer’s warranty policy. Terms can vary by brand; the product page reflects the applicable policy. If a claim is needed, we’ll help coordinate with the manufacturer.
Yes, most new, uninstalled items can be returned under our standard policy. Please see our Returns & Refunds Policy for eligibility, timeframes, and any exceptions.