9 x 3.50-4 flat free mower deck wheel suited to compatible large deck mowers and turf equipment, with a smooth semi-pneumatic tyre, central hub and 1/2″ axle fitment.
Suited to mower deck applications: Intended for compatible wheel positions directly on or alongside larger cutting decks, helping support the deck as the mower travels across lawn and turf.
Smooth tread for turf movement: The slick tread has no aggressive blocks to bite heavily into the grass, helping the wheel roll and pivot across turf with less surface disturbance during mower deck movement.
Semi-pneumatic tyre construction: The tyre provides some cushioning over grass and minor surface irregularities without relying on conventional tyre pressure, reducing the need for inflation and regular pressure checks.
Flat free mower deck wheel: The wheel assembly is suited to applications where a low-maintenance deck support wheel is required, while the semi-pneumatic tyre provides some compliance as the deck travels over the ground.
Central hub position: The hub is positioned centrally through the wheel, making it suitable for compatible mower deck brackets using the same centred mounting arrangement.
102mm hub length: The hub measures 102mm including the sleeve. Compare this dimension with the space inside your existing mower deck mounting bracket before ordering.
1/2″ axle fitment: Suits a 12.7mm (1/2″) axle. Check the axle or mounting bolt diameter on your existing mower deck wheel to confirm the replacement will fit.
Tapered roller bearings: Fitted tapered roller bearings help support the wheel under load while providing stable, smooth rotation during regular mower deck operation.
9 x 3.50-4 flat free mower deck wheel suited to compatible large deck mowers and turf equipment, with a smooth semi-pneumatic tyre, central hub and 1/2″ axle fitment.
Suited to mower deck applications: Intended for compatible wheel positions directly on or alongside larger cutting decks, helping support the deck as the mower travels across lawn and turf.
Smooth tread for turf movement: The slick tread has no aggressive blocks to bite heavily into the grass, helping the wheel roll and pivot across turf with less surface disturbance during mower deck movement.
Semi-pneumatic tyre construction: The tyre provides some cushioning over grass and minor surface irregularities without relying on conventional tyre pressure, reducing the need for inflation and regular pressure checks.
Flat free mower deck wheel: The wheel assembly is suited to applications where a low-maintenance deck support wheel is required, while the semi-pneumatic tyre provides some compliance as the deck travels over the ground.
Central hub position: The hub is positioned centrally through the wheel, making it suitable for compatible mower deck brackets using the same centred mounting arrangement.
102mm hub length: The hub measures 102mm including the sleeve. Compare this dimension with the space inside your existing mower deck mounting bracket before ordering.
1/2″ axle fitment: Suits a 12.7mm (1/2″) axle. Check the axle or mounting bolt diameter on your existing mower deck wheel to confirm the replacement will fit.
Tapered roller bearings: Fitted tapered roller bearings help support the wheel under load while providing stable, smooth rotation during regular mower deck operation.
Description
The SP09-350-500 is a 9 x 3.50-4 flat free mower deck wheel fitted with a semi-pneumatic tyre and suited to compatible large deck mowers and turf equipment. It is intended for deck-mounted applications where the wheel helps support the cutting deck as the mower travels across grass and uneven lawn surfaces.
The slick tread is well suited to turf because it does not use aggressive tread blocks that can bite heavily into the lawn. This helps the wheel roll and pivot across grass with less surface disturbance as the mower deck follows the ground.
Its semi-pneumatic tyre construction provides some cushioning over minor surface irregularities without relying on conventional air pressure. This reduces the need for tyre inflation and regular pressure checks while still giving the wheel some compliance during use.
The wheel uses a central hub arrangement with a hub length of 102mm including the sleeve. It suits a 12.7mm (1/2″) axle and is fitted with tapered roller bearings to support dependable rotation under load.
Fitment should be checked against the mower deck wheel currently installed on the machine. Compare the 9 x 3.50-4 size, 102mm hub length, 12.7mm axle diameter and central hub position, and make sure there is enough clearance inside the deck mounting bracket for the wheel to rotate freely.
Product FAQs
Fitment should be confirmed by comparing the wheel with the one currently fitted to your mower deck. For the SP09-350-500, check the 9 x 3.50-4 size, 102mm hub length, 12.7mm (1/2″) axle diameter and central hub position.
Also make sure the wheel has enough clearance inside the mounting bracket to rotate freely without binding.
Check the existing wheel’s tyre size, hub length, axle diameter and hub position. You should also measure the available width inside the mower deck mounting bracket.
Matching only the 9 x 3.50-4 tyre size is not enough, because wheels with the same nominal tyre size can use different axle and hub arrangements.
This wheel is suited to compatible large deck mowers and turf equipment. It is fitted directly to or alongside the cutting deck, where it helps support the deck as the mower moves across the ground.
It is a different application from the larger front castor wheels used for steering on zero-turn mowers.
The slick tread helps the wheel move across turf without aggressive tread blocks gripping heavily into the grass, which can help reduce surface wear during mower deck movement. The semi-pneumatic construction also provides some cushioning without requiring conventional tyre pressure maintenance.
The tapered roller bearings help support the wheel under load while maintaining stable, smooth rotation. This is useful in mower deck applications where the wheel is repeatedly rolling over turf while carrying part of the deck load.
Product Code
SP09-350-500
Size
9 X 3.50-4
Axle size
12.7 mm
Hub position
Central
Hub Length (with sleeve)
102 mm
Tyre Type
Semi Pnuematic Tyre
Tread Pattern
Slick
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