The Multiquip 28443ZH8003 is a genuine OEM Return Spring designed for a wide range of Multiquip, Whiteman, Essick, and STOW equipment including plate compactors such as the MVC-64H, MVC-70H, MVC-88GH, MVC90H, MVH-R60H, and MVH-120GH, as well as concrete mixers, mortar mixers, masonry saws, trash pumps, centrifugal pumps, diaphragm pumps, walk-behind trowels, and concrete saws across the MQ portfolio. As a genuine OEM part, 28443ZH8003 is sourced directly from Multiquip to ensure the correct specification for every machine it fits. Cross-family applicability makes this one of the most versatile service components in the Multiquip parts catalog, covering equipment from the MVC and MVH plate compactor series through the WM-70, MC-62S, MC-64S, EM-70S, and CA-series walk-behind trowels.
Key Features
- Genuine OEM Tension Calibration — Manufactured to the exact spring rate and free-length specification Multiquip requires, ensuring the return action performs as the original design intended across every compatible machine.
- Drop-In Replacement — Shares the identical hook geometry, wire diameter, and coil count as the original, allowing straightforward installation without modification to mounting posts or anchor points.
- Broad Cross-Family Fitment — A single part number covers plate compactors (MVC-64H, MVC-70H, MVC-88GH, MVH-R60H, MVH-120GH, MVH-150GH), concrete and mortar mixers (MC-62S, MC-64S, WM-70S, EM-70S), masonry and concrete saws (MP1455H, FCG1-6HA), pumps (QP2TH, MQD2H, CP-20H), and walk-behind trowels (CA4HM, J-Series, JA-Series).
- Consistent Return Force — A correctly tensioned return spring snaps controls, levers, or throttle linkages back to their neutral or idle position promptly; a fatigued or broken spring can leave a control stuck in an engaged position, leading to unintended machine operation.
- Corrosion-Resistant Construction — Spring steel construction resists the dust, moisture, and vibration exposure common to compaction, mixing, cutting, and pumping applications, maintaining rated tension over extended service intervals.
A return spring is a small but operationally critical component that uses stored elastic energy to pull a lever, linkage, or throttle control back to its default position once operator input is released. In construction equipment, return springs are commonly found in throttle assemblies, clutch linkages, and control handles — wherever a mechanism must reliably self-reset after each actuation cycle. When a return spring loses tension, takes a permanent set, or breaks entirely, the linked control may fail to return to neutral, causing erratic throttle behavior, clutch drag, or an inability to disengage a function cleanly. Replacing a fatigued spring promptly with the correct OEM specification part restores predictable, safe control response and prevents accelerated wear on the connected linkage components.
Part Details
| Part Number | 28443ZH8003 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Return Spring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Vibrators | G55H |
| Portable Generators | GA-2.5H |
| Portable Generators | GAC2.2H |
| Welders | GAW135H |
| Concrete Mixers | MC-42S |
| Mixers | MC-64S |
| Mixers | MC-64P |
| Saws | MP1H |
| Saws | MP115E |
| Saws | MP120E |
| Plate Compactors | MVC-64H |
| Plate Compactors | MVC-64HW |
| Plate Compactors | MVC-70H |
| Plate Compactors | MVC-70HW |
| Plate Compactors | MVC77 |
| Plate Compactors | MVC-88GH |
| Plate Compactors | MVC-88GHW |
| Plate Compactors | MVC90H |
| Plate Compactors | MVH-R60H |
| Concrete Mixers | EC-62S |
| Concrete Mixers | EC-62P |
| Concrete Mixers | MC-62S |
| Concrete Mixers | MC-62P |
| Concrete Mixers | CMS-44S |
| Concrete Mixers | CMS-4S |
| Concrete Mixers | CMS-64S |
| Concrete Mixers | CMS6S |
| Concrete Mixers | WC-42S |
| Concrete Mixers | WC-62P |
| ESSICK Plaster-Mortar Mixers | EM-70S |
| ESSICK Plaster-Mortar Mixers | EM-70P |
| Portable Mixers | MS15E |
| Masonry Saws | MS18E |
| Portable Mixers | MS45H5.5 |
| Masonry Saws | MS-63 |
| Mixers | WM-70P |
| Diaphragm Pumps | MQD2H |
| MQ Diaphragm Pumps | MQ-D305 |
| MQ Diaphragm Pumps | D306 |
| STOW Diaphragm Pumps | SDP-2 |
| STOW Centrifugal Pumps | CP-20H |
| STOW Centrifugal Pumps | CP-30H |
| Centrifugal Pumps | QP205SH |
| Trash Pumps | QP2TH |
| STOW Trash Pumps | T-20H |
| Concrete Saws | FCG1-6HA |
| Masonry Saws | MASONPROMP1 |
| Saws | MP1455H |
| Saws | MP1415E |
| STOW Masonry Saws | MS1455H |
| STOW Masonry Saws | MS1415E |
| STOW Masonry Saws | MS1420E |
| Concrete Saws | SFCG1 |
| International Walk-Behind Power Trowels | CA-4-4H |
| Whiteman Walk-Behind Power Trowels | CA4HM |
| MQ Mixers | MC64P/S |
| Saws | SCT36 |
| Saws | SCT46 |
| Walk-Behind Trowels | EPOXY-SERIES |
| Power Trowels | CA4.4HM |
| C and CA Series | CA4HC |
| Walk-Behind Trowels | J-SERIES |
| Walk-Behind Trowels | JA-SERIES |
| Saws | SCT36ANDSCT46 |
| Plate Compactors | MVH-120GH |
| Plate Compactors | MVH-150GH |
| Plate Compactors | MVH-150D |
| MQ Diaphragm Pumps | MQ-D206H |
| Diaphragm Pumps | MQD2D3H |
| MQ Diaphragm Pumps | MQ-D306HA |
| STOW Diaphragm Pumps | SDP-3 |
| MQ Centrifugal Pumps | QP-204H |
| Centrifugal Pumps | QP303H |
| MQ Trash Pumps | QP-202TH |
| Saws | MP1455HP |
| Plate Compactors | MVH-R60W |
| Concrete Mixers | EC-42S |
| MQ Mixers | MC44S |
| Concrete Mixers | WC-62S |
| Portable Mixers | MS15H5.5 |
| Masonry Saws | MS18H5.5 |
| Masonry Saws | MS18H8 |
| Portable Mixers | MS45E |
| Mixers | WM-70S |
| Concrete Saws | FCG1 |
| Saws | MP1420E |
| STOW Masonry Saws | TRAK-14 |
| Mixers | WM70S/P |
| Heavy Duty Series | HPHA36C5H |
| STOW Diaphragm Pumps | CA90749 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.