A walk-behind trowel sitting idle on a concrete pour is not just an inconvenience. It can mean missed finishing windows, delayed schedules, and unhappy crews. Concrete does not wait, and neither can you. Keeping the right spare parts on hand is one of the simplest ways to protect your operation from unplanned downtime. The parts below are among the most commonly replaced components on Multiquip walk-behind trowels. Stock what fits your machines and you will be back to finishing in minutes instead of days.
Spider Kits and Spider Assemblies
The spider assembly sits at the heart of your trowel. It connects the blades to the gearbox and transmits the rotational force that does the actual finishing work. Spiders take a beating from constant rotation, abrasive concrete slurry, and the weight load of the machine. Over time, the arms wear, the hub fatigues, and blade pitch becomes inconsistent. When that happens, your finish quality drops before the spider fully fails.
Plan to inspect spiders every 200 to 300 hours and replace them at the first sign of wobble, uneven blade pitch, or visible wear on the arms. Having a replacement on the shelf means you swap it out during scheduled maintenance rather than scrambling mid-job.
- SPIDER KIT 6BLD SPLINED STH (MPN: 21212), Fits STX55J6. $1,234.50. Shop Spider Kit 6BLD Splined STH
- ASM SPIDER 4BLD RH JWN (MPN: 20370), Fits JWN24HTCSL. $1,076.53. Shop ASM Spider 4BLD RH JWN
- ASM SPIDER 4BLD LH JWN (MPN: 20369), Fits JWN24HTCSL. $996.23. Shop ASM Spider 4BLD LH JWN
- SPIDER HTN/HTX 4BLD SERVICE KIT (MPN: 21751), Fits HTX-44K4. $887.60. Shop Spider HTN/HTX 4BLD Service Kit
- KIT, SVC, 6BLD TAPERED SPIDER STX/HTX (MPN: 23341), Fits HTXD6i, STX55J6, STX6H, STXD6i. $779.15. Shop 6BLD Tapered Spider Service Kit
If you run counter-rotating trowels like the JWN24HTCSL, keep both the right-hand and left-hand spider assemblies in stock. You will never need one without eventually needing the other.
Hydraulic Pitch Cylinder
The hydraulic pitch cylinder controls blade angle, which determines how aggressively the trowel cuts or finishes the surface. A cylinder that is leaking, slow to respond, or sticking will rob you of pitch control at exactly the moment you need precision. On machines with hydraulic pitch adjustment, this cylinder sees constant cycling throughout every pour.
Seals degrade from heat and hydraulic fluid contamination. Piston rods can score from debris. If you notice sluggish blade response or visible fluid weeping around the cylinder body, do not wait to replace it. Loss of pitch control affects finish quality across the entire slab.
CYLINDER, HYD PITCH 1.5 BORE (MPN: 20652), Fits HTX-44K4 and STX55J6. $1,046.10. Shop Hydraulic Pitch Cylinder
Thrust Service Assembly
The thrust assembly manages the axial load on the main shaft and keeps the rotor stable during operation. On ride-on capable STH-series machines used in walk-behind mode, this component works hard. Worn thrust components cause vibration, excessive shaft play, and accelerated wear on surrounding parts including the gearbox.
This assembly fits a wide range of models including the HTX6H, HTXD6i, HTXG6DF, MD105, MD80, MD82, STX55J6, STX6H, STXD6i, and STXDF. Replace it when you feel unusual vibration or detect shaft movement beyond spec. It is a high-value part to have ready before symptoms become failures.
ASM THRUST SERVICE STH RIDE ON TROWEL (MPN: 20939), $816.27. Contact CCE Industries to check availability on this part.
High-Pressure Fuel Pump
The Bosch UL Listed high-pressure fuel pump keeps fuel delivery consistent to the engine under load. A failing fuel pump shows up as hard starts, rough running at full throttle, or sudden engine shutdowns during finishing. On gas-powered trowels, fuel delivery problems often get misdiagnosed as carburetor or ignition issues before the pump is checked.
If your HTXG6DF is giving you fuel-related symptoms and the carb checks out clean, the fuel pump is the next component to inspect. Keeping a spare on hand avoids a multi-day parts wait during your busiest pours.
PUMP, FUEL HP BOSCH UL LISTED (MPN: 42009-04), Fits HTXG6DF. $959.55. Shop High-Pressure Fuel Pump
Order from CCE Industries
CCE Industries stocks genuine Multiquip parts for walk-behind trowels across the STX, HTX, JWN, and MD model lines. Whether you need a complete spider kit before a major project or a hydraulic cylinder to get a down machine back on the slab, you can find what you need in our online store. Order ahead, stock your shop, and keep your finishing schedule intact.
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