Description
The Toro / Exmark 135-7900 right hand hydro assembly is a genuine OEM hydraulic assembly for select commercial zero-turn mower applications. Listed as HYDRO-RH, this assembly is designed for compatible right-hand hydro drive systems.
OEM Toro and Exmark hydraulic drive parts are built to match factory specifications for fit, performance, and reliability. A worn or failing hydro assembly can cause weak drive power, loss of motion, uneven tracking, hydraulic noise, vibration, or poor mower control.
This 135-7900 HYDRO-RH assembly is commonly used on select Exmark Lazer Z S-Series and X-Series models, along with select Toro Z Master 3000, 5000, and 6000 Series commercial mower applications. Fitment depends on model number, serial number range, and left-hand or right-hand side, so always verify before ordering.
Toro / Exmark 135-7900 Specs
Brand: Toro / Exmark
Part Number: 135-7900
Product Type: Hydraulic Assembly / Hydro Assembly
: HYDRO-RH
Side: RH / Right Hand
OEM / Aftermarket: Genuine OEM
Application: Hydro drive system
Common Equipment: Exmark Lazer Z S-Series, Lazer Z X-Series, Toro Z Master 3000 Series, Toro Z Master 5000 Series, and Toro Z Master 6000 Series commercial mowers
Common Exmark Lazer Z Fitment
Toro / Exmark 135-7900 is commonly used on select Exmark Lazer Z models including:
LRS749AKC524A1
LRS749AKC524A2
LRS801GKA524A1
LRS801GKA524A2
LRX801GKA526Q1
LRX820AKA726Q1
LRX850GKA526Q1
LZS740AKC524A2
LZS749AKC524A2
LZS801GKA524A2
LZX801GKA526Q1
Common Toro Z Master Fitment
Toro / Exmark 135-7900 is commonly associated with select Toro Z Master commercial mower applications, including:
72902TE – Z Master Professional 6000 Series 122cm TURBO FORCE Side Discharge
72904 – Z Master 5000 KOH 23HP CP EFI 48 in.
72906 – 5000 Series 52 in. 25 HP EFI 747cc
72907 – Z Master 5000 KOH 25HP EFI 52 in.
72908 – ZM5000 KOH 26.5HP EFI 52 in.
72932 – Z Master 3000 KAW FX751V 52 in. MyRIDE
72949HD – Z Master 3000 KAW FX751V 52 in.
72955 – 5000 Series MyRIDE 52 in. 25 HP EFI 747cc
72956 – 5000 Series MyRIDE 52 in. 26.5 HP EFI 747cc
72969TE – Z Master Professional 6000 Series 132cm TURBO FORCE Side Discharge
Model Breakdown
LRS749AKC524A2
417930746 – 420130746
LRS801GKA524A2
417930746 – 420130746
LRX801GKA526Q1
417930746 – 420130746
420130747
LRX820AKA726Q1
417930746 – 420130746
LZS740AKC524A2
406294345 – 408644345
408644346 – 411294211
LZS749AKC524A2
413950474 – 416150474
416150475 – 417930745
LZS801GKA524A2
406294345 – 408644345
408644346 – 411294211
411294212 – 413950473
LZX801GKA526Q1
413950474 – 416150474
LRX850GKA526Q1
420130747 – 420916618
LRS749AKC524A1
420130747 – 420916618
LRS801GKA524A1
420130747 – 420916618
Toro Model Breakdown
72902TE – Z Master Professional 6000 Series 122cm TURBO FORCE Side Discharge
400000000 – 410999999
72904 – Z Master 5000 KOH 23HP CP EFI 48 in.
400000000 – 999999999
72906 – 5000 Series 52 in. 25 HP EFI 747cc
400000000 – 412199999
72907 – Z Master 5000 KOH 25HP EFI 52 in.
400000000 – 417499999
72908 – ZM5000 KOH 26.5HP EFI 52 in.
400000000 – 417999999
72932 – Z Master 3000 KAW FX751V 52 in. MyRIDE
400000000 – 999999999
72949HD – Z Master 3000 KAW FX751V 52 in.
400000000 – 999999999
72955 – 5000 Series MyRIDE 52 in. 25 HP EFI 747cc
400000000 – 412399999
72956 – 5000 Series MyRIDE 52 in. 26.5 HP EFI 747cc
400000000 – 417999999
72969TE – Z Master Professional 6000 Series 132cm TURBO FORCE Side Discharge
400000000 – 412899999
Part Number / Search Terms
Toro / Exmark 135-7900 may also be searched as:
135-7900
1357900
Toro 135-7900
Exmark 135-7900
Toro Exmark 135-7900
HYDRO-RH
Toro HYDRO-RH
Exmark HYDRO-RH
Toro right hand hydro assembly
Exmark right hand hydro assembly
Toro hydraulic assembly
Exmark hydraulic assembly
Toro hydraulic drive assembly
Exmark hydraulic drive assembly
Lazer Z right hand hydro
Z Master right hand hydro
RH hydro assembly
Right hand hydraulic drive assembly
Important Fitment Note
Toro / Exmark 135-7900 is a right hand hydro assembly. Many Toro and Exmark commercial mowers use different hydro assemblies depending on model, serial number range, engine option, deck size, and left-hand or right-hand side.
Before ordering, confirm:
Your mower model number
Your mower serial number
Whether you need the RH / right-hand hydro assembly
Your original hydro assembly part number
Your deck size and engine configuration
Frequently Asked Questions
Is Toro / Exmark 135-7900 an OEM part?
Yes. Toro / Exmark 135-7900 is a genuine OEM right hand hydro assembly.
What does HYDRO-RH mean?
HYDRO-RH means right hand hydraulic drive assembly. This part is for compatible right-hand hydro drive systems.
What models does 135-7900 fit?
This hydro assembly is commonly used on select Exmark Lazer Z S-Series and X-Series models, plus select Toro Z Master 3000, 5000, and 6000 Series commercial mower applications.
Does 135-7900 fit the left side?
No. This listing is for the right hand hydro assembly. Left hand hydro assemblies are different and must be matched separately by model and serial number.
How do I confirm this is the correct hydro assembly?
Check your mower model number, serial number, side of the mower, and original hydro assembly part number before ordering.
Should I verify fitment before ordering?
Yes. Always verify your model number, serial number range, side, and original part number before ordering.
P&P Small Engines stocks genuine Toro and Exmark hydraulic assemblies and commercial mower parts to help keep Lazer Z and Z Master equipment running properly.
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