Martyr Zinc Transom Bar Anode Volvo Penta SXA DPS CMT-3588745Z
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The Martyr CMT-3588745Z is a zinc transom bar anode for select Volvo Penta sterndrive applications. It is commonly cross-referenced to Volvo Penta 3588745 and is described across current listings as fitting SXA / DPS transom bar applications. This anode is designed to help protect the drive and transom area from galvanic corrosion in saltwater use.
This is a zinc anode, which makes it the correct material choice for saltwater only. Current published dimensions are approximately 4-1/2 in. length, 1-1/4 to 1.6 in. width, and 1 in. thickness, with 3/8 in. mounting holes and about 3-3/8 in. center-to-center hole spacing.
Key Features
- Zinc sacrificial transom bar anode
- Replaces Volvo Penta 3588745
- Martyr cross reference: CM3588745Z
- Commonly listed for Volvo Penta SXA / DPS applications
- Designed for saltwater corrosion protection
- Approx. size: 4-1/2 in. x 1-1/4 to 1.6 in. x 1 in.
- Approx. mounting spec: 3/8 in. holes, 3-3/8 in. centers
Engine Compatibility
Commonly listed for Volvo Penta SXA / DPS sterndrive applications. Some broader cross-reference listings also associate 3588745 with certain DPH / DPR / DPI transom zinc applications, so the safest fitment method is to match your exact Volvo Penta drive model, serial number, and installed anode shape before ordering.
Serial Number Fitment Notice
Please verify fitment using your Volvo Penta drive model and serial number before ordering. This is especially important because current aftermarket references connect this part number to more than one Volvo Penta drive family. Matching by OEM number 3588745 and the physical transom bar shape is the safest approach.
When This Part Needs Replacement
Replace this anode when it becomes heavily wasted, pitted, cracked, loose, or significantly reduced in size. Like other sacrificial anodes, it should be checked during haul-out and routine drive service so corrosion protection is maintained before the anode is fully consumed. Zinc is intended for saltwater service.
Installation Notes
Install on a clean bare-metal mounting surface so the anode has full metal-to-metal contact. Do not paint the anode. Current listings indicate mounting hardware may not be included, so check your existing hardware before ordering or installation.
Alternate / Superseded Part Numbers
- 3588745
- CM3588745
- CM3588745Z
- 2292
- 00735
- 8033837064183
Parts Desk Insight
This is a simple part, but it protects a much more expensive sterndrive assembly. One useful detail is that 3588745 shows up across several Volvo Penta drive references, which is why serial-number matching matters more than relying on title wording alone. For customers running in saltwater, zinc remains the correct traditional material choice for this application.
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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