MERCURY D1MB-8A317 Header Grill

( Manufacturer Part Number: D1MB-8A317 ), ( Type: Grille ), ( Placement On Vehicle: Front ), ( Vintage Part: Yes )

Review MERCURY Header Chrome Trim Above Grill fits MARQUIS 1971

The **Mercury D1MB-8A317 1971 Marquis Header Grill** is a meticulously crafted, high-performance marine header grill designed exclusively for Mercury outboard engines, specifically tailored to the legendary 1971 Marquis series. Engineered with precision and built to endure the rigors of saltwater and heavy-duty applications, this header grill serves as the critical interface between the engine s exhaust system and the surrounding marine environment. Constructed from heavy-duty marine-grade aluminum, the grill features a robust, ribbed design that enhances structural integrity while minimizing weight a balance that ensures optimal performance without compromising durability. The grill s unique header configuration is optimized for the 1971 Marquis engine s exhaust flow dynamics, allowing for efficient exhaust gas expulsion and reduced backpressure, which translates to improved engine efficiency and longevity. Its carefully contoured shape not only aids in directing exhaust away from critical components but also helps dissipate heat more effectively, reducing the risk of thermal stress on surrounding parts. The grill s clean, aerodynamic lines are not just functional but also contribute to a sleek, professional appearance, making it a standout component for both classic and modern marine applications. Whether installed on a vintage yacht, a performance cruiser, or a high-end fishing vessel, this header grill embodies the perfect fusion of heritage engineering and modern marine technology, ensuring reliable operation and a timeless aesthetic that complements the classic charm of the 1971 Marquis.

### **Pros and Cons of buying a Mercury D1MB-8A317 (1971 Marquis Header Grill)**

The Mercury D1MB-8A317 header grill from the 1971 Marquis is a classic and sought-after piece, particularly for vintage boat enthusiasts. Here are its key advantages:

1. **Historical Significance and Collectibility** This is a rare and well-regarded model from Mercury s mid-century production run. It holds value among collectors, especially for those restoring or maintaining vintage boats.

2. **Durability and Craftsmanship** Mercury engines of this era were known for solid construction, with cast iron components and robust design. The header grill is part of a reliable propulsion system that was built to last with proper maintenance.

3. **Compatibility with Classic Boats** If you own or are restoring a 1970s-era Mercury-powered boat (such as a Marquis, Marlin, or other classic models), this part is essential for authenticity and functionality.

4. **Resale Value** As a genuine OEM (Original Equipment Manufacturer) part, it retains value better than aftermarket replacements, especially if it s in good condition.

5. **Aesthetic Appeal** The design of the header grill is iconic, contributing to the vintage look of Mercury-powered boats. For show boats or restorations, this adds authenticity.

6. **Functionality** The header grill directs exhaust away from the engine bay, improving cooling and reducing heat buildup critical for long-term engine health.

7. **Ease of Installation (for Experienced DIYers)** While not a plug-and-play part, it is designed to fit standard Mercury outboards of its era, and many mechanics or boat owners with mechanical skills can install it with the right tools.

---

1. **Age and Wear** A 50-year-old part may show signs of rust, corrosion, or wear, especially if it was not stored properly. Inspecting it thoroughly (or having it professionally inspected) is crucial before buying.

2. **Limited Availability** While not extremely rare, genuine Mercury header grills from this era are harder to find than modern aftermarket alternatives. This can drive up the price or require sourcing from specialty dealers.

3. **Cost** Authentic OEM parts for vintage Mercury engines can be expensive, often costing significantly more than newer aftermarket replacements. Prices may vary widely depending on condition and demand.

4. **Maintenance Requirements** Like all vintage mechanical parts, this header grill will require periodic cleaning, rust treatment, and potential re-gasketing or welding to prevent leaks or failures.

5. **Compatibility Issues** If the boat has been modified or upgraded over the years, the header grill may not fit perfectly without additional work (e.g., custom fabrication or adapter parts).

6. **Reliability Concerns** While Mercury engines were durable, parts from this era may not meet modern standards for longevity. The header grill itself is less likely to fail compared to other components, but associated seals or fasteners might need replacement.

7. **Time-Consuming Restoration** If the part is heavily corroded or damaged, restoring it to working condition may require welding, machining, or re-plating, adding to the cost and effort.

8. **Market Saturation** For non-collectors, the practical benefits may not justify the expense, especially if the boat is primarily used for occasional recreational use rather than serious restoration.

---

The Mercury D1MB-8A317 header grill is a **highly desirable part for vintage boat enthusiasts, collectors, and restorers** who prioritize authenticity, historical value, and the classic look of Mercury-powered boats. Its durability and craftsmanship make it a sound investment for those committed to preserving or showcasing a 1970s-era vessel. However, for casual boat owners or those seeking a purely functional replacement without a focus on nostalgia, the cost and maintenance demands may outweigh the benefits.

If you are **restoring a classic boat, participating in vintage boat shows, or collecting Mercury parts**, this header grill is worth considering especially if you can source it in good condition at a reasonable price. For **modern or heavily modified boats**, an aftermarket replacement may offer better value without sacrificing performance.

---

- You are restoring or maintaining a 1970s-era Mercury-powered boat.

- You value authenticity and are willing to invest in preserving vintage equipment.

- You can find it in **good condition** (minimal rust, intact gaskets, and structurally sound).

- You are prepared for **potential maintenance costs** (e.g., cleaning, re-gasketing, or welding).

- You are buying from a **reputable dealer or auction** with a clear return policy.

- You need a **budget-friendly** solution and can find a compatible aftermarket header grill.

- The boat is **not a priority for restoration** and is used infrequently.

- You are unsure about the part s **condition** and cannot inspect it thoroughly before purchasing.

- You lack the **mechanical skills or tools** to install or maintain it properly.

**Final Verdict:** For the right buyer someone deeply invested in vintage boating the Mercury D1MB-8A317 header grill is a worthwhile purchase. For others, weighing the cost against practical needs is essential. Always prioritize **condition, authenticity, and compatibility** when making the decision.

Details:

Otherwise it just has minor cosmetic scratches and blemishes. The little grill piece on one side is broke off.

part #: d1mb8a317 price

• $125.00

specifications grilexte:

• for models: Marquis
• for makes: Mercury
• for years: 1971
• mpn: D1mb-8a317
• type: Grille
• placement on vehicle: Front
• vintage part: Yes

offer grilexte:

• options: Ship-to-home
• sold: 0
• quantity: 1
• started: May 14, 2026
• availability: In Stock

returns grilexte:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

shipping grilexte:

• service: USPS Ground Advantage
• cost: $25.00
• transit: 5-12 Days
• type: Fixed
• carrier: USPS
• class: Standard

payments grilexte:

• wallet: Apple-pay
• credit card: Visa
• other

general grilexte:

• condition: Used
• Car Truck Parts Accessories > Exterior Parts Accessories > Grilles

seller grilexte:

• # reviews: 309
• rating: 99.3%
• city: Mulvane, Kansas

Mercury D1MB-8A317 Is Similar To:

• 1346773 8909 Desoto Custom Deluxe Grill Teeth Pn Mercury Leadsled (18.8% similar) Outside drivers side passengers. 1950S deist custom deluxe grill teeth pn: mercury lead sled - this item requires restoration has two cracks as shown...(December 21st, 2018)
• 1346790 8911 Desoto Custom Deluxe Grill Teeth Pn Mercury Leadsled (18.8% similar) 1950S deist custom deluxe grill teeth pn: mercury lead sled - this item requires restoration outside drivers side passengers...(December 21st, 2018)
• 1m-17744 Ford Motor Company Mercury Grill Gravel Guard Stone Shield Bumper (19% similar) Close-up photos show areas will need extra attention. I try to research everything list for accuracy, but am not all-knowing and make mistakes, as do my resources ask that you understand what it is re looking at before buying. Here is a very workable front lower bumper filler panel correct for '51 ...(April 22nd, 2019)
• 29a8170 1942 Mercury Upper Grill (33.7% similar) Nice set of 1942 mercury upper grill trim. May be new nos but have shelf wear. See pics some chrome pimples. Great shape...(August 30th, 2017)
• 59 A8196 Mercury Lower Grille Original Grill Hot Rod Flathead Ford (24.8% similar) No breaks or cracks, one piece needs straightened. Need restored. Priced to sell, hard find. Up for sale is a set of original mercury lower grille parts...(September 19th, 2018)
• 59a-8350 Mercury Grill Bar Surround (26.5% similar) Closer destinations should be cheaper and I will reduce the shipping cost accordingly. 1946, 47 and 48 mercury grille surround - painted, used. Listed in the mercury parts book as radiator grille part 59AWERE painted and chrome. Some perforation in the one lower corner of piece. Shipping cost quoted...(January 8th, 2019)
• 67686768 Fomoco Mercury Cougar Headlight Grille Assemblies Nice Chrome (34.6% similar) No vacuum pods. I would be willing to separate the grille pieces save on shipping 68 mercury cougar headlight assemblies - nice chrome very good fins. Headlight capsules in place. I see no broken fins. These are heavy to ship and the package is large oversize. One housing has a corrosion hole as ...(April 23rd, 2018)
• Bae-88292-a Mercury Front Center Grille Turnpike Cruiser Grill (28.8% similar) This is for the 1957 mercury and it goes right in front of your car, center. The gray area in between ribs that is not chrome has more pits, but still a lot, and you can see what I am talking about last 2 pictures. Winning bidder pays only we got it with a small lot of turnpike cruiser parts, but ...(December 18th, 2018)
• Bg-17853-a Mercury Monterey Chrome Grille Teeth Filler Moulding Trim Orig (35.3% similar) Please see photos. You are buying on four 1953 mercury Monterey chrome grille teeth filler moulding trim bag a factory originals. There are no cracks, holes, breaks or dents. All mounting studs are intact. These teeth do have pitting but would be great for re-chroming...(October 20th, 2018)
• Bg-17944-a Rh Mercury Front Bumperette Grille Chrome Trim Moulding Factory Originals (40.8% similar) You are purchasing a set of mercury front impurities grille chrome trim moulding factory originals. Please see photos. These do have pitting and a small gouge in front but would be great for re-chroming. There are no cracks, dents, holes or breaks. These are placed behind the front impurities. These...(October 23rd, 2018)
• Bv-7325616-c Mercury New Ford Custom Series Coupe Sedan Fender Trim (36.9% similar) My grandfather owned and operated a ford motor co. The stainless steel is in immaculate condition with minimal scuffing from box or shelf. From the early 1950S up until late 70'S. Up for sale is a brand new left hand drivers side rear fender trim molding the 1955 mercury custom coupe and sedan...(April 18th, 2018)