Description
SeaStar HA6423 Sport Plus Tilt Replacement Kit for Hydraulic Helm Pumps
Brand: Dometic SeaStar Part number: HA6423
HA6423 is the replacement tilt-kit reference for Sport Plus tilt helms. Dometic lists the Sport Plus cover alone as 18-HA6450, and identifies HA6123 separately for the Sport Tilt mechanism. Match the helm style and whether a complete tilt kit or only a cover is required.
Technical details
| Service component | Replacement tilt kit |
|---|---|
| Manufacturer helm style | Sport Plus tilt |
| Separate cover-only reference | 18-HA6450 |
| Different Sport Tilt kit | HA6123 |
The Dometic SeaStar HA6423 is used to replace the tilt mechanism on Sport Plus Tilt SeaStar helms.
Features:
- Tilt replacement for Sport Plus Tilt SeaStar helms
- Preload dual taper bearings - ensure minimal excess free play
- Shaft seals to prevent water ingress
- Factory Installed lubrication - provides smooth operation and feel
Specifications:
- 48° of articulation
- 5 Tilt Positions
Downloads & Resources:
SeaStar HA6423 Installation Instructions: [PDF]
HA6423 Diagram:

Questions?
- Tech Support: Tech Support Page
- Check Stock: Stock Inquiry Page
- Request a Shipping Quote: Request Quote Page
- No Sales Tax on Purchases Outside of California
- Buy Now Pay Later with Affirm or PayPal Pay Later
- Formerly Teleflex, SeaStar is now Dometic Marine
- Seatech Marine Products, Inc. is an authorized dealer, and service center for Dometic Marine
International Customers: We Ship Worldwide, Shipping Cost May Quote Too High on Our Web Site, contact us for a quote.
Manufacturer references and downloads
- Dometic Marine Steering Selection Guide — 2027, Revision 32 (PDF)
Reference for HA6423 in the stated edition; see PDF page 86.