Suzuki DF90A 90HP 2009 &UP Thermostat (60°C) + Genuine Seal | Replaces 17670-90J01 / 17670-90J00 / 17685-87L01
PRODUCT DETAILS
Keep your Suzuki DF90A running at optimal temperature with this 60°C thermostat and genuine cover seal kit — ideal for 90HP 4-stroke outboards from 2019 and up.
✅ Fits Suzuki Models:
• DF90A – 90 HP
• 4-Stroke EFI
• 2019 and newer
✅ Kit Includes:
• 1 x 60°C Thermostat (high-quality aftermarket)
• 1 x Thermostat Cover Seal (Genuine Suzuki – P/N: 17685-87L01)
✅ Replaces Part Numbers:
• Thermostat: 17670-90J01, 17670-90J00
• Seal: 17685-87L01
(OEM numbers used for reference – fully compatible aftermarket part + genuine seal)
Key Features:
• Maintains correct engine cooling (60°C rating)
• Marine-grade construction – reliable in salt & freshwater
• Direct fit – easy installation
• Helps prevent overheating and engine damage
• Perfect for routine service or thermostat replacement
Why Choose SSI Marine?
• Quality parts at competitive prices
• UK-based stock with fast dispatch
• Same-day shipping before 1 PM
• Tracked 24-hour delivery
• Collection available from Leigh (Manchester)
• VAT invoices available upon request
• Friendly technical advice — we’re here to help
⚠️ Fitment Notice:
Please double-check your engine model and year before purchasing.
If unsure, send us your serial number — our technical team will confirm fitment.
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.
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